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Unit 1: Using Objects and Methods

AP Computer Science A — Note Packet

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Key Terms

Java Virtual Machine (JVM)

A that allows Java programs to run on any computer by translating _________ into machine-readable instructions.

Bytecode

The language that Java code gets compiled into, which can be understood by any computer with a _________.

Variable Declaration

The process of creating a variable by putting a on an empty box, specifying the _________ type it will hold.

Variable Initialization

The process of actually putting a into a declared variable box for the _________ time.

Assignment Operator

The single sign (=) that means 'store the value on the _________ into the variable on the left.'

Compound Assignment Operators

Programming like += and -= that combine an operation with _________ in one step.

Integer Overflow

What happens when you try to store a number that's too for an int, causing it to wrap around to the _________ end of the range.

Explicit Casting

Converting from a data type to a smaller one using _________ and potentially losing information.

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