🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 70 (from laksa192)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa070.int.ahrefs:8124/' \
  -H 'Content-Type: text/plain' \
  -H 'X-ClickHouse-Database: crawler3' \
  -H 'Authorization: Basic YXBpOg==' \
  -d 'SELECT getAhrefsURLFromUnparsed(src_unparsed) AS found_url, ifNull(toUnixTimestamp(download_stamp), 0) AS crawl_time, ifNull(toUnixTimestamp(props_url_first_seen), 0) AS first_indexed_time, download_http_code AS http_code, src_unparsed AS src_unparsed, src_root_hash AS src_root_hash, history_drop_reason AS history_drop_reason, meta_title AS meta_title, meta_descriptions AS meta_descriptions, attrs_boilerpipe_text AS attrs_boilerpipe_text, attrs_markdown AS attrs_markdown, attrs_readable_markdown AS attrs_readable_markdown, meta_canonical AS meta_canonical FROM crawler3.page_info_local FINAL PREWHERE (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://apstudents.collegeboard.org/courses/ap-computer-science-a\')), getAhrefsUnparsedNoserviceFromURL(\'https://apstudents.collegeboard.org/courses/ap-computer-science-a\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/apstudents.collegeboard.org\/courses\/ap-computer-science-a","crawl_time":1775901111,"first_indexed_time":1558605566,"http_code":200,"src_unparsed":"org,collegeboard!apstudents,\/courses\/ap-computer-science-a s443","src_root_hash":"9677673930691487470","history_drop_reason":null,"meta_title":"AP Computer Science A – AP Students | College Board","meta_descriptions":["Study the concepts and tools of computer science as you learn a subset of the Java programming language. You will design, write, and test computer programs."],"attrs_boilerpipe_text":"Not a Student?\nGo\n            to AP Central\nfor resources for teachers, administrators, and coordinators.\nAbout the Course\nDo you want to cure cancer? Design a video game? Or maybe build interactive art? AP Computer Science A explores how to use, build, and work with the technologies of tomorrow to help answer some of the biggest questions of today. In this course, you’ll design and implement computer programs using a subset of the Java programming language that can be used to develop algorithms, data structures, and solve problems.\nSkills You'll Learn\nDesigning a program, developing the algorithms it needs, and writing code to implement them\nTesting program code and correcting errors\nDocumenting and explaining how program code works\nEquivalency and Prerequisites\nCollege Course Equivalent\nA one-semester, introductory college course in computer science\nRecommended Prerequisites\nHigh school courses in English and algebra, and familiarity with functions and the concepts found in the uses of function notation\nExam\n              Date\nAP Computer Science A Exam\nThis is the regularly scheduled date for the AP Computer Science A Exam.\nYour Future Starts Now\nAP can lead to a wide range of careers and college majors.\nExplore Careers\nFind careers related to your AP course.\nSearch Careers\nExplore Majors\nFind college majors related to your AP course.\nSearch Majors\nAbout the Units\nThe course content outlined below is organized into commonly taught units\n                of study that provide one possible sequence for the course. Your teacher may choose to organize the\n                course content differently based on local priorities and preferences.\nCourse Content\nUnit 4: Data Collections\nYou’ll learn techniques and standard algorithms to work with collections of related data, known as data structures. You’ll delve deeper into data sets, exploring array, ArrayList of objects, and 2D arrays.\nTopics may include:\nConsidering intellectual property and ethical concerns in programming\nConsidering ethical issues around data collections\nUsing data sets\nRepresenting multiple related items as array objects\nTraversing an array by accessing the elements using iteration statements\nImplementing standard algorithms that utilize array traversals to perform functions\nUtilizing class libraries, including Integer and Double\nRepresenting collections of related object reference data using\nArrayList\nobjects\nTraversing an\nArrayList\n by accessing the elements using iteration statements\nImplementing standard algorithms that utilize\nArrayList\n traversals to perform functions\nSearching and sorting using standard algorithms\nRepresenting collections of data as arrays of arrays, or 2D arrays\nTraversing a 2D array by accessing the elements using nested iteration statements\nExecuting recursive methods\nSearching and sorting using binary search and merge sort algorithms \nOn The Exam\n30%–40% of exam score\nCourse Resources\nAP Classroom Resources\nOnce you join your AP class section online, you’ll be able to access videos, any assignments from your teacher, and your assignment results in AP Classroom. Sign in to access them.\nAP Computer Science A Lab Requirements\nLearn about the required laboratory component included in AP Computer Science A.\nAP Computer Science A Java Quick Reference\nThe Java Quick Reference is included in the Bluebook testing app and lists the accessible methods from the Java library that may be included on the exam.  For the AP Computer Science A Exam, schools can print this reference information and provide it to students on exam day. It is also available in Bluebook.\nMore About Your Course\nAP College and Career Connections: Computer Science\nDiscover college scholarships and other opportunities in the field.\nIEEE\nIEEE is the largest technical professional organization in the world that is dedicated to advancing technology for the benefit of humanity.\nAdditional Information","attrs_markdown":"[AP Students](https:\/\/apstudents.collegeboard.org\/)\n\n- [Home](https:\/\/apstudents.collegeboard.org\/)\n- [Getting Started](https:\/\/apstudents.collegeboard.org\/courses\/ap-computer-science-a)\n  \n  - [What Is AP?](https:\/\/apstudents.collegeboard.org\/what-is-ap)\n  - [Choosing Your AP Courses](https:\/\/apstudents.collegeboard.org\/choosing-courses)\n  - [Map Out Your Journey with AP](https:\/\/apstudents.collegeboard.org\/map-your-journey-with-ap)\n  - [How to Sign Up for an AP Course](https:\/\/apstudents.collegeboard.org\/how-to-sign-up-ap-course)\n  - [AP Around the World](https:\/\/apstudents.collegeboard.org\/ap-around-the-world)\n  - [How to Access Your AP Resources](https:\/\/apstudents.collegeboard.org\/access-your-ap-resources)\n- [AP Courses & Exams](https:\/\/apstudents.collegeboard.org\/courses)\n- [Taking Exams](https:\/\/apstudents.collegeboard.org\/courses\/ap-computer-science-a)\n  \n  - [2026 AP Exam Dates](https:\/\/apstudents.collegeboard.org\/exam-dates)\n  - [What to Know About AP Exams](https:\/\/apstudents.collegeboard.org\/ap-exams-what-to-know)\n  - [Digital Portfolios](https:\/\/apstudents.collegeboard.org\/digital-portfolios)\n  - [Exam Accommodations](https:\/\/apstudents.collegeboard.org\/getting-accommodations)\n  - [Exam Policies](https:\/\/apstudents.collegeboard.org\/exam-policies-guidelines)\n  - [Register for AP Exams](https:\/\/apstudents.collegeboard.org\/register-for-ap-exams)\n- [Scores](https:\/\/apstudents.collegeboard.org\/courses\/ap-computer-science-a)\n  \n  - [View Your Scores](https:\/\/apstudents.collegeboard.org\/view-scores)\n  - [Sending Scores](https:\/\/apstudents.collegeboard.org\/sending-scores)\n  - [About AP Scores](https:\/\/apstudents.collegeboard.org\/about-ap-scores)\n  - [Score Reporting Services](https:\/\/apstudents.collegeboard.org\/score-reporting-services)\n  - [AP Awards & Recognitions](https:\/\/apstudents.collegeboard.org\/awards-recognitions)\n- [Credit & Placement](https:\/\/apstudents.collegeboard.org\/courses\/ap-computer-science-a)\n  \n  - [Getting Credit and Placement](https:\/\/apstudents.collegeboard.org\/getting-credit-placement)\n  - [Credit Policy Search](https:\/\/apstudents.collegeboard.org\/getting-credit-placement\/search-policies)\n- [Help](https:\/\/apstudents.collegeboard.org\/help-center)\n- [Calendar](https:\/\/apstudents.collegeboard.org\/calendar)\n- [More](https:\/\/apstudents.collegeboard.org\/courses\/ap-computer-science-a)\n\n[Display Site Navigation](https:\/\/apstudents.collegeboard.org\/courses\/ap-computer-science-a)\n\n1. [Home](https:\/\/apstudents.collegeboard.org\/)\n2. [AP Courses & Exams](https:\/\/apstudents.collegeboard.org\/courses)\n3. Active Page: AP Computer Science A\n\n# AP Computer Science A\nLearn all about the course and exam. Already enrolled? Join your class in My AP.\n\n[Go to My AP](https:\/\/myap.collegeboard.org\/ \"Opens in a new window\")   [See How to Join Your Class](https:\/\/apstudents.collegeboard.org\/access-your-ap-resources\/join-your-class-online)\n\n## Not a Student?\n[Go to AP Central](https:\/\/apcentral.collegeboard.org\/courses\/ap-computer-science-a) for resources for teachers, administrators, and coordinators.\n\n## AP Computer Science A\n- [Why Take the Course](https:\/\/apstudents.collegeboard.org\/courses\/ap-computer-science-a\/about)\n- [About the Course](https:\/\/apstudents.collegeboard.org\/courses\/ap-computer-science-a)\n- [About the Exam](https:\/\/apstudents.collegeboard.org\/courses\/ap-computer-science-a\/assessment)\n\n[Go to My AP](https:\/\/myap.collegeboard.org\/)\n\n- [Why Take the Course](https:\/\/apstudents.collegeboard.org\/courses\/ap-computer-science-a\/about)\n- [About the Course](https:\/\/apstudents.collegeboard.org\/courses\/ap-computer-science-a)\n- [About the Exam](https:\/\/apstudents.collegeboard.org\/courses\/ap-computer-science-a\/assessment)\n\n## About the Course\nDo you want to cure cancer? Design a video game? Or maybe build interactive art? AP Computer Science A explores how to use, build, and work with the technologies of tomorrow to help answer some of the biggest questions of today. In this course, you’ll design and implement computer programs using a subset of the Java programming language that can be used to develop algorithms, data structures, and solve problems.\n\n## Skills You'll Learn\n- Designing a program, developing the algorithms it needs, and writing code to implement them\n- Testing program code and correcting errors\n- Documenting and explaining how program code works\n\n## Equivalency and Prerequisites\n### College Course Equivalent\nA one-semester, introductory college course in computer science\n\n### Recommended Prerequisites\nHigh school courses in English and algebra, and familiarity with functions and the concepts found in the uses of function notation\n\n## Exam Date\nFri, May 15, 2026\n\n12 PM Local\n\n### AP Computer Science A Exam\nThis is the regularly scheduled date for the AP Computer Science A Exam.\n\n[Details](https:\/\/apstudents.collegeboard.org\/dates\/ap-computer-science-a-exam) [Add to Calendar](https:\/\/apstudents.collegeboard.org\/ics\/2836\/field_event_date)\n\n## Your Future Starts Now\nAP can lead to a wide range of careers and college majors.\n\n### Explore Careers\nFind careers related to your AP course.\n\n[Search Careers](https:\/\/bigfuture.collegeboard.org\/career-search\/)\n\n### Explore Majors\nFind college majors related to your AP course.\n\n[Search Majors](https:\/\/bigfuture.collegeboard.org\/majors)\n\n## About the Units\nThe course content outlined below is organized into commonly taught units of study that provide one possible sequence for the course. Your teacher may choose to organize the course content differently based on local priorities and preferences.\n\n## Course Content\n##\nExpand All\n\nCollapse All\n\n[**Unit 1: Using Objects and Methods** You’ll learn the fundamentals of Java, a programming language, and other foundational concepts for coding. You’ll explore reference data as a way to represent real-world objects in a digital world and discover methods to perform more complex operations.](https:\/\/apstudents.collegeboard.org\/courses\/ap-computer-science-a)\n\nTopics may include:\n\n- Using primitive data types including int, double, and Boolean\n- Evaluating arithmetic expressions in program code\n- Using assignment operators to produce a value\n- Knowing how variables and operators are sequenced and combined in an expression to create a result\n- Using comments to describe the functionality of code\n- Using objects and classes to describe instances, attributes, and behaviors\n- Creating objects by calling constructors with and without parameters\n- Defining an object’s behavior using methods, including static and Math class\n- Calling non-static void methods with and without parameters\n- Using String objects and methods\n- Using application program interfaces (APIs) and libraries\n\n**On The Exam**\n\n15%–25% of exam score\n\n[**Unit 2: Selection and Iteration** You’ll delve into the building blocks of algorithms and focus on using conditional statements to solve problems and control results. You’ll learn about iteration, another building block of algorithms that are for repetition.](https:\/\/apstudents.collegeboard.org\/courses\/ap-computer-science-a)\n\nTopics may include:\n\n- Finding Boolean values with expressions involving relational operators\n- Using conditional statements to execute different statements based on input values\n- Building on conditional statements to create multiple possible outcomes\n- Creating the same value using equivalent Boolean expressions\n- Creating a loop to run an expression repeatedly until certain conditions are met\n- Implementing standard arithmetic-based and String-based algorithms\n- Representing iterative processes in code using for and while loops\n- Nesting loop and iteration statements\n- Informally analyzing run-times\n\n**On The Exam**\n\n25%–35% of exam score\n\n[**Unit 3: Class Creation** You’ll explore how real-world interactions can be expressed digitally by organizing behaviors and attributes into classes.](https:\/\/apstudents.collegeboard.org\/courses\/ap-computer-science-a)\n\nTopics may include:\n\n- Designing a class, including whether attributes are public or private\n- Setting an object’s attributes using constructors\n- Defining behaviors of an object using non-void, void, and static methods\n- Breaking problems into smaller parts by creating methods to solve individual subproblems\n\n**On The Exam**\n\n10%–18% of exam score\n\n[**Unit 4: Data Collections** You’ll learn techniques and standard algorithms to work with collections of related data, known as data structures. You’ll delve deeper into data sets, exploring array, ArrayList of objects, and 2D arrays.](https:\/\/apstudents.collegeboard.org\/courses\/ap-computer-science-a)\n\nTopics may include:\n\n- Considering intellectual property and ethical concerns in programming\n- Considering ethical issues around data collections\n- Using data sets\n- Representing multiple related items as array objects\n- Traversing an array by accessing the elements using iteration statements\n- Implementing standard algorithms that utilize array traversals to perform functions\n- Utilizing class libraries, including Integer and Double\n- Representing collections of related object reference data using `ArrayList` objects\n- Traversing an `ArrayList` by accessing the elements using iteration statements\n- Implementing standard algorithms that utilize `ArrayList` traversals to perform functions\n- Searching and sorting using standard algorithms\n- Representing collections of data as arrays of arrays, or 2D arrays\n- Traversing a 2D array by accessing the elements using nested iteration statements\n- Executing recursive methods\n- Searching and sorting using binary search and merge sort algorithms\n\n**On The Exam**\n\n30%–40% of exam score\n\nCredit and Placement\n\n## Search AP Credit Policies\nFind colleges that grant credit and\/or placement for AP Exam scores in this and other AP courses.\n\n[Start a Search](https:\/\/apstudents.collegeboard.org\/getting-credit-placement\/search-policies\/course\/8)\n\n## Course Resources\nVideo\n\n[Why AP Computer Science A Is for You](https:\/\/apstudents.collegeboard.org\/courses\/ap-computer-science-a)\n\nHear from students who took this course and find out how it can benefit you as you prepare to own your future, your way.\n\n- 59:12\n\nClose Modal\n\nClose\n\nLink\n\n[Why Take AP Computer Science A?](https:\/\/blog.collegeboard.org\/why-take-ap-computer-science-a)\n\nLearn more about how AP computer science courses can launch you into limitless careers.\n\n- Go to College Board Blog\n\nLink\n\n[The Difference Between AP Computer Science Principles and AP Computer Science A](https:\/\/blog.collegeboard.org\/difference-between-ap-computer-science-principles-and-ap-computer-science)\n\nLearn the similarities and differences between these two courses and exams.\n\n- Go to College Board Blog\n\nLink\n\n[AP Classroom Resources](https:\/\/myap.collegeboard.org\/login)\n\nOnce you join your AP class section online, you’ll be able to access videos, any assignments from your teacher, and your assignment results in AP Classroom. Sign in to access them.\n\n- Go to AP Classroom\n\nArticle\n\n[AP Computer Science A Lab Requirements](https:\/\/apstudents.collegeboard.org\/courses\/ap-computer-science-a\/lab-requirements)\n\nLearn about the required laboratory component included in AP Computer Science A.\n\nDownload\n\n[AP Computer Science A Java Quick Reference](https:\/\/apcentral.collegeboard.org\/media\/pdf\/ap-computer-science-a-java-quick-reference.pdf)\n\nThe Java Quick Reference is included in the Bluebook testing app and lists the accessible methods from the Java library that may be included on the exam. For the AP Computer Science A Exam, schools can print this reference information and provide it to students on exam day. It is also available in Bluebook.\n\n- PDF\n\nDownload\n\n[AP Computer Science A Course and Exam Description](https:\/\/apcentral.collegeboard.org\/pdf\/ap-computer-science-a-course-and-exam-description.pdf)\n\nThis is the core document for the course. It clearly lays out the course content and describes the exam and AP Program in general.\n\n- PDF\n- 0 bytes\n\nDownload\n\n[AP Computer Science A Course and Exam Description Clarifications and Corrections](https:\/\/apcentral.collegeboard.org\/media\/pdf\/ap-computer-science-a-course-and-exam-description-clarification.pdf)\n\nThis document provides teachers with clarifications and\/or corrections for the AP Computer Science A Course and Exam Description.\n\n- PDF\n\n## More About Your Course\nArticle\n\n[AP College and Career Connections: Computer Science](https:\/\/apstudents.collegeboard.org\/courses\/ap-computer-science-opportunities)\n\nDiscover college scholarships and other opportunities in the field.\n\nLink\n\n[ACM (Association for Computing Machinery)](http:\/\/www.acm.org\/)\n\nACM brings together computing educators, researchers, and professionals to inspire dialogue, share resources, and address the challenges of the field.\n\n- Go to ACM (Association for Computing Machinery)\n\nLink\n\n[ACSL (American Computer Science League)](http:\/\/www.acsl.org\/)\n\nACSL organizes computer science contests and computer programming contests for elementary, junior, and senior high school students.\n\n- Go to ACSL (American Computer Science League)\n\nLink\n\n[IEEE](http:\/\/www.ieee.org\/index.html)\n\nIEEE is the largest technical professional organization in the world that is dedicated to advancing technology for the benefit of humanity.\n\n- Go to IEEE\n\n## Additional Information\n[Choosing Your AP Courses](https:\/\/apstudents.collegeboard.org\/choosing-courses)\n\n[How to Sign Up for an AP Course](https:\/\/apstudents.collegeboard.org\/how-to-sign-up-ap-course)\n\n[Join Your AP Class Section Online](https:\/\/apstudents.collegeboard.org\/access-your-ap-resources\/join-your-class-online)","attrs_readable_markdown":"## Not a Student?\n[Go to AP Central](https:\/\/apcentral.collegeboard.org\/courses\/ap-computer-science-a) for resources for teachers, administrators, and coordinators.\n\nAbout the Course\n\nDo you want to cure cancer? Design a video game? Or maybe build interactive art? AP Computer Science A explores how to use, build, and work with the technologies of tomorrow to help answer some of the biggest questions of today. In this course, you’ll design and implement computer programs using a subset of the Java programming language that can be used to develop algorithms, data structures, and solve problems.\n\nSkills You'll Learn\n\n- Designing a program, developing the algorithms it needs, and writing code to implement them\n- Testing program code and correcting errors\n- Documenting and explaining how program code works\n\nEquivalency and Prerequisites\n\n### College Course Equivalent\nA one-semester, introductory college course in computer science\n\n### Recommended Prerequisites\nHigh school courses in English and algebra, and familiarity with functions and the concepts found in the uses of function notation\n\nExam Date\n\n### AP Computer Science A Exam\nThis is the regularly scheduled date for the AP Computer Science A Exam.\n\n## Your Future Starts Now\nAP can lead to a wide range of careers and college majors.\n\n### Explore Careers\nFind careers related to your AP course.\n\n[Search Careers](https:\/\/bigfuture.collegeboard.org\/career-search\/)\n\n### Explore Majors\nFind college majors related to your AP course.\n\n[Search Majors](https:\/\/bigfuture.collegeboard.org\/majors)\n\nAbout the Units\n\nThe course content outlined below is organized into commonly taught units of study that provide one possible sequence for the course. Your teacher may choose to organize the course content differently based on local priorities and preferences.\n\nCourse Content\n\n[**Unit 4: Data Collections** You’ll learn techniques and standard algorithms to work with collections of related data, known as data structures. You’ll delve deeper into data sets, exploring array, ArrayList of objects, and 2D arrays.](https:\/\/apstudents.collegeboard.org\/courses\/ap-computer-science-a)\n\nTopics may include:\n\n- Considering intellectual property and ethical concerns in programming\n- Considering ethical issues around data collections\n- Using data sets\n- Representing multiple related items as array objects\n- Traversing an array by accessing the elements using iteration statements\n- Implementing standard algorithms that utilize array traversals to perform functions\n- Utilizing class libraries, including Integer and Double\n- Representing collections of related object reference data using `ArrayList` objects\n- Traversing an `ArrayList` by accessing the elements using iteration statements\n- Implementing standard algorithms that utilize `ArrayList` traversals to perform functions\n- Searching and sorting using standard algorithms\n- Representing collections of data as arrays of arrays, or 2D arrays\n- Traversing a 2D array by accessing the elements using nested iteration statements\n- Executing recursive methods\n- Searching and sorting using binary search and merge sort algorithms\n\n**On The Exam**\n\n30%–40% of exam score\n\nCourse Resources\n\n[AP Classroom Resources](https:\/\/myap.collegeboard.org\/login)\n\nOnce you join your AP class section online, you’ll be able to access videos, any assignments from your teacher, and your assignment results in AP Classroom. Sign in to access them.\n\n[AP Computer Science A Lab Requirements](https:\/\/apstudents.collegeboard.org\/courses\/ap-computer-science-a\/lab-requirements)\n\nLearn about the required laboratory component included in AP Computer Science A.\n\n[AP Computer Science A Java Quick Reference](https:\/\/apcentral.collegeboard.org\/media\/pdf\/ap-computer-science-a-java-quick-reference.pdf)\n\nThe Java Quick Reference is included in the Bluebook testing app and lists the accessible methods from the Java library that may be included on the exam. For the AP Computer Science A Exam, schools can print this reference information and provide it to students on exam day. It is also available in Bluebook.\n\nMore About Your Course\n\n[AP College and Career Connections: Computer Science](https:\/\/apstudents.collegeboard.org\/courses\/ap-computer-science-opportunities)\n\nDiscover college scholarships and other opportunities in the field.\n\n[IEEE](http:\/\/www.ieee.org\/index.html)\n\nIEEE is the largest technical professional organization in the world that is dedicated to advancing technology for the benefit of humanity.\n\nAdditional Information","meta_canonical":null}

3. Robots.txt Check

Query:

Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

ℹ️ Skipped - page is already crawled

📄

INDEXABLE

✅

CRAWLED

7 hours ago

🤖

ROBOTS ALLOWED

Page Info Filters

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	PASS	`download_stamp > now() - 6 MONTH`	0 months ago
History drop	PASS	`isNull(history_drop_reason)`	No drop reason
Spam/ban	PASS	`fh_dont_index != 1 AND ml_spam_score = 0`	ml_spam_score=0
Canonical	PASS	`meta_canonical IS NULL OR = '' OR = src_unparsed`	Not set

Page Details

Property	Value
URL	https://apstudents.collegeboard.org/courses/ap-computer-science-a
Last Crawled	2026-04-11 09:51:51 (7 hours ago)
First Indexed	2019-05-23 09:59:26 (6 years ago)
HTTP Status Code	200
Meta Title	AP Computer Science A – AP Students \| College Board
Meta Description	Study the concepts and tools of computer science as you learn a subset of the Java programming language. You will design, write, and test computer programs.
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Boilerpipe Text	Not a Student? Go to AP Central for resources for teachers, administrators, and coordinators. About the Course Do you want to cure cancer? Design a video game? Or maybe build interactive art? AP Computer Science A explores how to use, build, and work with the technologies of tomorrow to help answer some of the biggest questions of today. In this course, you’ll design and implement computer programs using a subset of the Java programming language that can be used to develop algorithms, data structures, and solve problems. Skills You'll Learn Designing a program, developing the algorithms it needs, and writing code to implement them Testing program code and correcting errors Documenting and explaining how program code works Equivalency and Prerequisites College Course Equivalent A one-semester, introductory college course in computer science Recommended Prerequisites High school courses in English and algebra, and familiarity with functions and the concepts found in the uses of function notation Exam Date AP Computer Science A Exam This is the regularly scheduled date for the AP Computer Science A Exam. Your Future Starts Now AP can lead to a wide range of careers and college majors. Explore Careers Find careers related to your AP course. Search Careers Explore Majors Find college majors related to your AP course. Search Majors About the Units The course content outlined below is organized into commonly taught units of study that provide one possible sequence for the course. Your teacher may choose to organize the course content differently based on local priorities and preferences. Course Content Unit 4: Data Collections You’ll learn techniques and standard algorithms to work with collections of related data, known as data structures. You’ll delve deeper into data sets, exploring array, ArrayList of objects, and 2D arrays. Topics may include: Considering intellectual property and ethical concerns in programming Considering ethical issues around data collections Using data sets Representing multiple related items as array objects Traversing an array by accessing the elements using iteration statements Implementing standard algorithms that utilize array traversals to perform functions Utilizing class libraries, including Integer and Double Representing collections of related object reference data using ArrayList objects Traversing an ArrayList by accessing the elements using iteration statements Implementing standard algorithms that utilize ArrayList traversals to perform functions Searching and sorting using standard algorithms Representing collections of data as arrays of arrays, or 2D arrays Traversing a 2D array by accessing the elements using nested iteration statements Executing recursive methods Searching and sorting using binary search and merge sort algorithms On The Exam 30%–40% of exam score Course Resources AP Classroom Resources Once you join your AP class section online, you’ll be able to access videos, any assignments from your teacher, and your assignment results in AP Classroom. Sign in to access them. AP Computer Science A Lab Requirements Learn about the required laboratory component included in AP Computer Science A. AP Computer Science A Java Quick Reference The Java Quick Reference is included in the Bluebook testing app and lists the accessible methods from the Java library that may be included on the exam. For the AP Computer Science A Exam, schools can print this reference information and provide it to students on exam day. It is also available in Bluebook. More About Your Course AP College and Career Connections: Computer Science Discover college scholarships and other opportunities in the field. IEEE IEEE is the largest technical professional organization in the world that is dedicated to advancing technology for the benefit of humanity. Additional Information
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[Home](https://apstudents.collegeboard.org/) 2. [AP Courses & Exams](https://apstudents.collegeboard.org/courses) 3. Active Page: AP Computer Science A # AP Computer Science A Learn all about the course and exam. Already enrolled? Join your class in My AP. [Go to My AP](https://myap.collegeboard.org/ "Opens in a new window") [See How to Join Your Class](https://apstudents.collegeboard.org/access-your-ap-resources/join-your-class-online) ## Not a Student? [Go to AP Central](https://apcentral.collegeboard.org/courses/ap-computer-science-a) for resources for teachers, administrators, and coordinators. ## AP Computer Science A - [Why Take the Course](https://apstudents.collegeboard.org/courses/ap-computer-science-a/about) - [About the Course](https://apstudents.collegeboard.org/courses/ap-computer-science-a) - [About the Exam](https://apstudents.collegeboard.org/courses/ap-computer-science-a/assessment) [Go to My AP](https://myap.collegeboard.org/) - [Why Take the Course](https://apstudents.collegeboard.org/courses/ap-computer-science-a/about) - [About the Course](https://apstudents.collegeboard.org/courses/ap-computer-science-a) - [About the Exam](https://apstudents.collegeboard.org/courses/ap-computer-science-a/assessment) ## About the Course Do you want to cure cancer? Design a video game? Or maybe build interactive art? AP Computer Science A explores how to use, build, and work with the technologies of tomorrow to help answer some of the biggest questions of today. In this course, you’ll design and implement computer programs using a subset of the Java programming language that can be used to develop algorithms, data structures, and solve problems. ## Skills You'll Learn - Designing a program, developing the algorithms it needs, and writing code to implement them - Testing program code and correcting errors - Documenting and explaining how program code works ## Equivalency and Prerequisites ### College Course Equivalent A one-semester, introductory college course in computer science ### Recommended Prerequisites High school courses in English and algebra, and familiarity with functions and the concepts found in the uses of function notation ## Exam Date Fri, May 15, 2026 12 PM Local ### AP Computer Science A Exam This is the regularly scheduled date for the AP Computer Science A Exam. [Details](https://apstudents.collegeboard.org/dates/ap-computer-science-a-exam) [Add to Calendar](https://apstudents.collegeboard.org/ics/2836/field_event_date) ## Your Future Starts Now AP can lead to a wide range of careers and college majors. ### Explore Careers Find careers related to your AP course. [Search Careers](https://bigfuture.collegeboard.org/career-search/) ### Explore Majors Find college majors related to your AP course. [Search Majors](https://bigfuture.collegeboard.org/majors) ## About the Units The course content outlined below is organized into commonly taught units of study that provide one possible sequence for the course. Your teacher may choose to organize the course content differently based on local priorities and preferences. ## Course Content ## Expand All Collapse All [Unit 1: Using Objects and Methods You’ll learn the fundamentals of Java, a programming language, and other foundational concepts for coding. You’ll explore reference data as a way to represent real-world objects in a digital world and discover methods to perform more complex operations.](https://apstudents.collegeboard.org/courses/ap-computer-science-a) Topics may include: - Using primitive data types including int, double, and Boolean - Evaluating arithmetic expressions in program code - Using assignment operators to produce a value - Knowing how variables and operators are sequenced and combined in an expression to create a result - Using comments to describe the functionality of code - Using objects and classes to describe instances, attributes, and behaviors - Creating objects by calling constructors with and without parameters - Defining an object’s behavior using methods, including static and Math class - Calling non-static void methods with and without parameters - Using String objects and methods - Using application program interfaces (APIs) and libraries On The Exam 15%–25% of exam score [Unit 2: Selection and Iteration You’ll delve into the building blocks of algorithms and focus on using conditional statements to solve problems and control results. You’ll learn about iteration, another building block of algorithms that are for repetition.](https://apstudents.collegeboard.org/courses/ap-computer-science-a) Topics may include: - Finding Boolean values with expressions involving relational operators - Using conditional statements to execute different statements based on input values - Building on conditional statements to create multiple possible outcomes - Creating the same value using equivalent Boolean expressions - Creating a loop to run an expression repeatedly until certain conditions are met - Implementing standard arithmetic-based and String-based algorithms - Representing iterative processes in code using for and while loops - Nesting loop and iteration statements - Informally analyzing run-times On The Exam 25%–35% of exam score [Unit 3: Class Creation You’ll explore how real-world interactions can be expressed digitally by organizing behaviors and attributes into classes.](https://apstudents.collegeboard.org/courses/ap-computer-science-a) Topics may include: - Designing a class, including whether attributes are public or private - Setting an object’s attributes using constructors - Defining behaviors of an object using non-void, void, and static methods - Breaking problems into smaller parts by creating methods to solve individual subproblems On The Exam 10%–18% of exam score [Unit 4: Data Collections You’ll learn techniques and standard algorithms to work with collections of related data, known as data structures. You’ll delve deeper into data sets, exploring array, ArrayList of objects, and 2D arrays.](https://apstudents.collegeboard.org/courses/ap-computer-science-a) Topics may include: - Considering intellectual property and ethical concerns in programming - Considering ethical issues around data collections - Using data sets - Representing multiple related items as array objects - Traversing an array by accessing the elements using iteration statements - Implementing standard algorithms that utilize array traversals to perform functions - Utilizing class libraries, including Integer and Double - Representing collections of related object reference data using `ArrayList` objects - Traversing an `ArrayList` by accessing the elements using iteration statements - Implementing standard algorithms that utilize `ArrayList` traversals to perform functions - Searching and sorting using standard algorithms - Representing collections of data as arrays of arrays, or 2D arrays - Traversing a 2D array by accessing the elements using nested iteration statements - Executing recursive methods - Searching and sorting using binary search and merge sort algorithms On The Exam 30%–40% of exam score Credit and Placement ## Search AP Credit Policies Find colleges that grant credit and/or placement for AP Exam scores in this and other AP courses. [Start a Search](https://apstudents.collegeboard.org/getting-credit-placement/search-policies/course/8) ## Course Resources Video [Why AP Computer Science A Is for You](https://apstudents.collegeboard.org/courses/ap-computer-science-a) Hear from students who took this course and find out how it can benefit you as you prepare to own your future, your way. - 59:12 Close Modal Close Link [Why Take AP Computer Science A?](https://blog.collegeboard.org/why-take-ap-computer-science-a) Learn more about how AP computer science courses can launch you into limitless careers. - Go to College Board Blog Link [The Difference Between AP Computer Science Principles and AP Computer Science A](https://blog.collegeboard.org/difference-between-ap-computer-science-principles-and-ap-computer-science) Learn the similarities and differences between these two courses and exams. - Go to College Board Blog Link [AP Classroom Resources](https://myap.collegeboard.org/login) Once you join your AP class section online, you’ll be able to access videos, any assignments from your teacher, and your assignment results in AP Classroom. Sign in to access them. - Go to AP Classroom Article [AP Computer Science A Lab Requirements](https://apstudents.collegeboard.org/courses/ap-computer-science-a/lab-requirements) Learn about the required laboratory component included in AP Computer Science A. Download [AP Computer Science A Java Quick Reference](https://apcentral.collegeboard.org/media/pdf/ap-computer-science-a-java-quick-reference.pdf) The Java Quick Reference is included in the Bluebook testing app and lists the accessible methods from the Java library that may be included on the exam. For the AP Computer Science A Exam, schools can print this reference information and provide it to students on exam day. It is also available in Bluebook. - PDF Download [AP Computer Science A Course and Exam Description](https://apcentral.collegeboard.org/pdf/ap-computer-science-a-course-and-exam-description.pdf) This is the core document for the course. It clearly lays out the course content and describes the exam and AP Program in general. - PDF - 0 bytes Download [AP Computer Science A Course and Exam Description Clarifications and Corrections](https://apcentral.collegeboard.org/media/pdf/ap-computer-science-a-course-and-exam-description-clarification.pdf) This document provides teachers with clarifications and/or corrections for the AP Computer Science A Course and Exam Description. - PDF ## More About Your Course Article [AP College and Career Connections: Computer Science](https://apstudents.collegeboard.org/courses/ap-computer-science-opportunities) Discover college scholarships and other opportunities in the field. Link [ACM (Association for Computing Machinery)](http://www.acm.org/) ACM brings together computing educators, researchers, and professionals to inspire dialogue, share resources, and address the challenges of the field. - Go to ACM (Association for Computing Machinery) Link [ACSL (American Computer Science League)](http://www.acsl.org/) ACSL organizes computer science contests and computer programming contests for elementary, junior, and senior high school students. - Go to ACSL (American Computer Science League) Link [IEEE](http://www.ieee.org/index.html) IEEE is the largest technical professional organization in the world that is dedicated to advancing technology for the benefit of humanity. - Go to IEEE ## Additional Information [Choosing Your AP Courses](https://apstudents.collegeboard.org/choosing-courses) [How to Sign Up for an AP Course](https://apstudents.collegeboard.org/how-to-sign-up-ap-course) [Join Your AP Class Section Online](https://apstudents.collegeboard.org/access-your-ap-resources/join-your-class-online)
Readable Markdown	## Not a Student? [Go to AP Central](https://apcentral.collegeboard.org/courses/ap-computer-science-a) for resources for teachers, administrators, and coordinators. About the Course Do you want to cure cancer? Design a video game? Or maybe build interactive art? AP Computer Science A explores how to use, build, and work with the technologies of tomorrow to help answer some of the biggest questions of today. In this course, you’ll design and implement computer programs using a subset of the Java programming language that can be used to develop algorithms, data structures, and solve problems. Skills You'll Learn - Designing a program, developing the algorithms it needs, and writing code to implement them - Testing program code and correcting errors - Documenting and explaining how program code works Equivalency and Prerequisites ### College Course Equivalent A one-semester, introductory college course in computer science ### Recommended Prerequisites High school courses in English and algebra, and familiarity with functions and the concepts found in the uses of function notation Exam Date ### AP Computer Science A Exam This is the regularly scheduled date for the AP Computer Science A Exam. ## Your Future Starts Now AP can lead to a wide range of careers and college majors. ### Explore Careers Find careers related to your AP course. [Search Careers](https://bigfuture.collegeboard.org/career-search/) ### Explore Majors Find college majors related to your AP course. [Search Majors](https://bigfuture.collegeboard.org/majors) About the Units The course content outlined below is organized into commonly taught units of study that provide one possible sequence for the course. Your teacher may choose to organize the course content differently based on local priorities and preferences. Course Content [Unit 4: Data Collections You’ll learn techniques and standard algorithms to work with collections of related data, known as data structures. You’ll delve deeper into data sets, exploring array, ArrayList of objects, and 2D arrays.](https://apstudents.collegeboard.org/courses/ap-computer-science-a) Topics may include: - Considering intellectual property and ethical concerns in programming - Considering ethical issues around data collections - Using data sets - Representing multiple related items as array objects - Traversing an array by accessing the elements using iteration statements - Implementing standard algorithms that utilize array traversals to perform functions - Utilizing class libraries, including Integer and Double - Representing collections of related object reference data using `ArrayList` objects - Traversing an `ArrayList` by accessing the elements using iteration statements - Implementing standard algorithms that utilize `ArrayList` traversals to perform functions - Searching and sorting using standard algorithms - Representing collections of data as arrays of arrays, or 2D arrays - Traversing a 2D array by accessing the elements using nested iteration statements - Executing recursive methods - Searching and sorting using binary search and merge sort algorithms On The Exam 30%–40% of exam score Course Resources [AP Classroom Resources](https://myap.collegeboard.org/login) Once you join your AP class section online, you’ll be able to access videos, any assignments from your teacher, and your assignment results in AP Classroom. Sign in to access them. [AP Computer Science A Lab Requirements](https://apstudents.collegeboard.org/courses/ap-computer-science-a/lab-requirements) Learn about the required laboratory component included in AP Computer Science A. [AP Computer Science A Java Quick Reference](https://apcentral.collegeboard.org/media/pdf/ap-computer-science-a-java-quick-reference.pdf) The Java Quick Reference is included in the Bluebook testing app and lists the accessible methods from the Java library that may be included on the exam. For the AP Computer Science A Exam, schools can print this reference information and provide it to students on exam day. It is also available in Bluebook. More About Your Course [AP College and Career Connections: Computer Science](https://apstudents.collegeboard.org/courses/ap-computer-science-opportunities) Discover college scholarships and other opportunities in the field. [IEEE](http://www.ieee.org/index.html) IEEE is the largest technical professional organization in the world that is dedicated to advancing technology for the benefit of humanity. Additional Information
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