Java while Loop Overview

The Java while loop is a control flow statement used to iterate a block of code until a specified condition is met. The syntax of a while loop in Java is:

while (condition) {
    // loop statements
}

In this loop, the code block inside the curly braces {} is executed repeatedly as long as the condition inside the parentheses () evaluates to true. Once the condition becomes false, the loop terminates.

The while loop operates in the following manner:

1. Initialization: Before the loop starts, any necessary initializations take place, such as declaring variables or setting up the loop iteration counter.
2. Condition Check: The loop starts by evaluating the condition.
3. Loop Execution: If the condition is true, the code block inside the loop is executed. This block can include statements to update the values or perform any desired operations.
4. Condition Update: At the end of each iteration, the condition is updated to check if it is still true. If it is, the loop continues to the next iteration.
5. Loop Termination: When the condition becomes false, the loop terminates, and the program control moves to the next statement after the while loop.

Here is an example of a while loop in Java:

int i = 1;
while (i <= 10) {
    System.out.println(i);
    i++;
}

In this example, the loop starts with i being initialized to 1. The condition i <= 10 is checked, and since it is true, the loop body is executed. The code inside the loop prints the value of i and then updates i by incrementing it by 1. This process continues until the condition is no longer true, at which point the loop terminates and the program proceeds to the next statement.