Java while dowhile语法

package ne;
 
public class c4 {
    public static void main(String[] args) {
break; 终止当前循环语句
continue; 结束这一次循环，立即准备开启下一次循环
 
        int ix = 1;
        do {
            System.out.println(ix++);
            //Thread.currentThread().sleep(2000);
        } while (true);
 
 
        while (true) {
            try {
                System.out.printf("===================");
            } catch (Exception e) {
                break;  //退出
            }
            continue;  //跳过
        }
 
 
        int i = 100;
        while (i <= 4) {
            System.out.println(i++);
        }
 
        for (int j = 1; j <= 4; j++) {
            System.out.println(j);
        }
 
 
    }
}