The role of break in java

The break statement in Java is used to exit a loop or switch statement early when certain conditions are met. It causes control to transfer to the outer code block. The usage of break includes: in loops, it is used to exit the loop early when the required value is found; in switch statements, it is used to exit after processing a specific case to prevent subsequent cases from being executed. The syntax is break;.

The role of break in Java

In Java, the break statement is used to exit Loop or switch statement. It essentially causes control to transfer to a block of code outside the loop or switch statement.

When to use break

The main purpose of using the break statement is to end the loop or switch statement early when a specific condition is met. For example:

• ##Loop: When you find the value you want, you can use break to exit the loop.
• switch: When you handle a specific case, you can use break to exit the switch statement to prevent subsequent cases from being executed.

Grammar

break The syntax of the statement is very simple:

<code class="java">break;</code>

Example

The following is an example of using the

break statement:

Loop:

<code class="java">List<Integer> numbers = List.of(1, 2, 3, 4, 5);

for (int number : numbers) {
    if (number == 3) {
        break;
    }
    System.out.println(number); // 输出 1 和 2
}</code>

switch:

<code class="java">int month = 3;

switch (month) {
    case 1:
        System.out.println("一月");
        break;
    case 2:
        System.out.println("二月");
        break;
    case 3:
        System.out.println("三月");
        break;
    default:
        System.out.println("其他月份");
}</code>

Output:

<code>三月</code>

The above is the detailed content of The role of break in java. For more information, please follow other related articles on the PHP Chinese website!