2.1

Objects

AP Computer Science A

What is an object?

Classes vs. Objects

Reference types vs. Primitive types

Memory model

null references

Reference aliasing

The dot operator

Complete example

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Common Mistakes

Key Vocabulary

Unit 2 topics

Unit 2 overview 2.1Objects 2.2Creating Objects 2.3Methods 2.4String Methods 2.5Math Class 2.6Random Numbers

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