What is the role of break in java

The break statement is used in Java to: break a loop and immediately terminate the loop execution; jump out of the switch statement case block, terminate the execution of the case block and transfer control.

The role of the break statement in Java

In Java, the break statement is a control flow statement. Used to break out of loops or switch statements. Its function is as follows:

Break the loop:

• When the break statement is executed within the loop, it immediately terminates the loop and transfers control to after the loop statement.
• The loop will stop immediately regardless of whether it completes or not.

Break out of the switch statement:

• When the break statement is executed in the case block of the switch statement, it will terminate the execution of the case block. and transfers control to the statement following the switch statement.
• No subsequent case blocks will be executed.

Example

for (int i = 0; i < 10; i++) {
    if (i == 5) {
        break;
    }
    // 其他代码
}

In this example, when i equals 5, the break statement will break out of the for loop and continue executing the code after the loop.

switch (number) {
    case 1:
        // 代码块 1
        break;
    case 2:
        // 代码块 2
        break;
    default:
        // 其他代码
}

In this example, if number is equal to 1, the break statement will jump out of the case 1 block and continue executing the code after the switch statement.

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