break，continue，return三者的区别

package com.hangao.basic;/** * @author zhulianying *  * continue 中断当前循环的当前次，继续当前循环的下一次（如果有），继续执行后面的代码 * * break 中断当前循环的所有次，不再继续当前循环，继续外层嵌套循环的下一次（如果有），继续执行后面的代码 * * return 中断所有循环,且不再执行后面的代码 * * 威力 return > break > continue */public class TestBreakContinueReturn {    public static void main(String[] args) {        testReturn1();        testReturn2();        testContinue1();        testContinue2();        testBreak1();        testBreak2();    }    /**     * 运行结果：     * i value is 0     */    private static void testReturn1() {        for (int i = 0; i < 3; i++) {            if (i == 1){                return;//中断所有循环            }            System.out.println("i value is " + i);        }        System.out.println("TestBreakContinueReturn.testReturn1()");    }    /**     * 运行结果：     * i value is 0     */    private static void testReturn2() {        for (int j = 0; j < 3; j++) {            for (int i = 0; i < 3; i++) {                if (i == 1){                    return;//中断所有循环                }                System.out.println("i value is " + i);            }        }        System.out.println("TestBreakContinueReturn.testReturn2()");    }    /**     * 运行结果：     * i value is 0     * i value is 2     * TestBreakContinueReturn.testContinue1()     */    private static void testContinue1() {        for (int i = 0; i < 3; i++) {            if (i == 1){                continue;//中断当前循环            }            System.out.println("i value is " + i);        }        System.out.println("TestBreakContinueReturn.testContinue1()");    }    /**     * 运行结果：     * i value is 0     * i value is 2     * i value is 0     * i value is 2     * i value is 0     * i value is 2     * TestBreakContinueReturn.testContinue2()     */    private static void testContinue2() {        for (int j = 0; j < 3; j++) {            for (int i = 0; i < 3; i++) {                if (i == 1){                    continue;//中断当前循环                }                System.out.println("i value is " + i);            }        }        System.out.println("TestBreakContinueReturn.testContinue2()");    }    /**     * 运行结果：     * i value is 0     * TestBreakContinueReturn.testBreak1()     */    private static void testBreak1() {        for (int i = 0; i < 3; i++) {            if (i == 1){                break;//中断整个循环            }            System.out.println("i value is " + i);        }        System.out.println("TestBreakContinueReturn.testBreak1()");    }    /**     * 运行结果：     * i value is 0     * i value is 0     * i value is 0     * TestBreakContinueReturn.testBreak2()     */    private static void testBreak2() {        for (int j = 0; j < 3; j++) {            for (int i = 0; i < 3; i++) {                if (i == 1){                    break;//中断当前整个循环                }                System.out.println("i value is " + i);            }        }        System.out.println("TestBreakContinueReturn.testBreak2()");    }}