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  3. AP Computer Science A - Unit 2: Using Objects

ap computer science a - unit 2: using objects

originally streamed in 2020 with Takeisha MoranzaTeacher
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Learn how to use objects in AP Computer Science A Unit 2. This video breaks down creating objects, calling methods, and working with object references to help you prepare for your AP exam. You'll explore how to instantiate objects from classes, use ...more

covered in this stream

units
Unit 2 – Using Objects in AP Computer Science AUnit 5 – Writing Classes in AP Computer Science A

timestamps

  • 0:00

    Introduction and Overview

  • 0:33

    Lesson Reminders

  • 1:03

    AP Exam Importance

  • 1:35

    Class Example: Person

  • 3:40

    StudentRecord Class

  • 4:41

    Constructors Explained

  • 5:45

    Instance Variables

  • 6:45

    Overloaded Constructors

  • 9:25

    Void Methods

  • 10:57

    Runner Class Objects

  • 14:03

    Return Methods

  • 15:36

    toString Method

  • 17:10

    AddNums Runner

  • 21:24

    Padlet: Area Class

  • 28:08

    Area Class Solution

  • 29:46

    FRQ: Return Methods

  • 35:39

    Strings Introduction

  • 37:47

    String Concatenation

  • 38:51

    Concatenation Question

  • 42:38

    Question Breakdown

  • 44:12

    String Methods

  • 48:21

    compareTo Method

  • 50:28

    equals Method

  • 51:00

    Wrapper Classes

  • 53:40

    Min Max Values

  • 55:15

    Math Methods

  • 56:49

    abs and pow

  • 57:54

    Math.random

  • 59:28

    Random Number Question

  • 1:01:08

    Random Explanation

  • 1:02:11

    Next Session Preview

  • 1:02:41

    Trivia and Discord

  • 1:03:11

    Q&A and Goodbye

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© 2026 Fiveable Inc. All rights reserved.

AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.

every AP exam is fiveable

Fiveable

Study Content & Tools

Study GuidesFRQs + AI ScoringAP Essay Grader for StudentsAI Grading for TeachersPractice QuestionsGlossaryScore Calculators

Company

What's New?PricingBulk DiscountsTestimonialsFAQsEmail us

Resources

AP Exam Schedule 2027AP Exam AccommodationsAP ClassesAP ClassroomEasiest AP ClassesHardest AP ClassesAP vs IBAP vs Dual EnrollmentAP vs Honors ClassesAP Scholar Awards

history

🌎 ap world history🇺🇸 ap us history🇪🇺 ap european history

social science

✊🏿 ap african american studies🗳️ ap comparative government🚜 ap human geography💶 ap macroeconomics🤑 ap microeconomics🧠 ap psychology👩🏾‍⚖️ ap us government

english & capstone

✍🏽 ap english language📚 ap english literature🔍 ap research💬 ap seminar

arts

🎨 ap art & design🖼️ ap art history🎵 ap music theory

science

🧬 ap biology🧪 ap chemistry♻️ ap environmental science🎡 ap physics 1🧲 ap physics 2💡 ap physics c: e&m⚙️ ap physics c: mechanics

math & computer science

🧮 ap calculus ab♾️ ap calculus bc📐 ap precalculus📊 ap statistics💻 ap computer science a⌨️ ap computer science p

world languages

🇨🇳 ap chinese🇫🇷 ap french🇩🇪 ap german🇮🇹 ap italian🇯🇵 ap japanese🏛️ ap latin🇪🇸 ap spanish language💃🏽 ap spanish literature

career kickstart

💼 ap business with personal finance🔒 ap cybersecurity

go beyond AP

high school exams

✏️ PSAT🎓 Digital SAT🎒 ACT

honors classes

🍬 honors algebra II🫀 honors anatomy🐇 honors biology👩🏽‍🔬 honors chemistry💲 honors economics📐 honors geometry⚾️ honors physics📏 honors pre-calculus📊 honors statistics🗳️ honors us government🇺🇸 honors us history🌎 honors world history

college classes

👩🏽‍🎤 arts👔 business🎤 communications🏗️ engineering📓 humanities➗ math🧑🏽‍🔬 science💶 social science

hs classes

🏛️ alabama history⛰️ appalachian studies🌴 california history🌍 earth science🌐 ethnic studies🐊 florida history🍑 georgia history🌎 global studies🌺 hawaiian studies📰 journalism🪶 native american studies🌵 new mexico history🤠 oklahoma history⚗️ physical science🎙️ speech and debate🤝 texas government🤠 texas history🌲 washington state history🕊️ world religions
RefundsTermsPrivacyCCPAAI TransparencySchool Data Privacy

© 2026 Fiveable Inc. All rights reserved.

AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.