AP CS A Unit 4
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11 Terms
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Body of a Loop
**The single statement or a block of statements that can be repeated (a loop may not execute at all if the condition is false to start with). In Java this block of statements is either the first statement following a while or for loop or a block of statements enclosed in { and }.**
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**For Loop**
**For Loop**
**A loop that has a header with 3 optional parts: initialization, condition, and change. It does the initialization one time before the body of the loop executes, executes the body of the loop if the condition is true, and executes the change after the body of the loop executes before checking the condition again.**
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**Infinite Loop**
**Infinite Loop**
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**A loop that never ends**
**A loop that never ends**
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Loop
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**A way to repeat one or more statements in a program.**
**A way to repeat one or more statements in a program.**
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**Nested Loop**
**Nested Loop**
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**One loop inside of another.**
**One loop inside of another.**
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**Out of Bounds error**
**Out of Bounds error**
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**A run-time error that occurs when you try to access past the end of a string or list in a loop**
**A run-time error that occurs when you try to access past the end of a string or list in a loop**
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**Trace Code**
**Trace Code**
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**Writing down the values of the variables and how they change each time the body of the loop executes.**
**Writing down the values of the variables and how they change each time the body of the loop executes.**
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**While Loop**
**While Loop**
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**A loop that repeats while a Boolean expression is true.**
**A loop that repeats while a Boolean expression is true.**
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while
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**used to start a while loop**
**used to start a while loop**
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for
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**used to start a for loop**
**used to start a for loop**
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**used to print the value of the variable. This is useful in tracing the execution of code and when debugging.**
**used to print the value of the variable. This is useful in tracing the execution of code and when debugging.**
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**System.out.println(variable)**
**System.out.println(variable)**