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CO*While Loop*
A while loop is a control structure in programming that repeats a block of code as long as a specified condition is true.
*Syntax:*
```
while (condition) {
// code to be executed
}
```
*How it works:*
1. The condition is evaluated.
2. If the condition is true, the code inside the loop is executed.
3. The condition is re-evaluated.
4. Steps 2-3 repeat until the condition becomes false.
5. The loop exits when the condition is false.
*Example:*
```
int i = 0;
while (i < 5) {
println(i);
i++;
}
```
Output:
```
0
1
2
3
4
```
*Types of While Loops:*
1. *Simple While Loop*: Repeats a block of code while a condition is true.
2. *Infinite While Loop*: Repeats indefinitely (e.g., `while (true) { ... }`).
3. *Nested While Loop*: A while loop inside another while loop.
*Common Uses:*
1. Repeating tasks
2. Iterating over arrays or lists
3. Implementing algorithms (e.g., sorting, searching)
4. Handling user input
*Best Practices:*
1. Initialize loop variables before the loop.
2. Use clear and concise condition statements.
3. Avoid infinite loops.
4. Use break statements to exit loops prematurely (if needed).
Do you have any specific questions about while loops?
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