1.增强for循环
java5引入了主要用于数组的增强型for循环。
public class forEnhanced { public static void main(String[] arys){ int[] numbers = {1,2,3,4,5}; for (int x : numbers){ System.out.println(x); } String[] names = {"Tome","Jone","liHua","xiaoMing","geGe"}; for (String x : names){ System.out.println(x); } } }
2.简单的for循环:
public class forDemo { public static void main(String[] args){ for (int x=0;x<20;x++){ System.out.println("value of x:"+x); } } }
3.简单的while循环:
public class whileDemo { public static void main(String[] arys){ int x = 10; while (x<20){ System.out.println("value of x:" + x); x++; } } }
4.java关键字continue
public class continueDemo { public static void main(String[] args){ int[] numbers={1,2,3,4,5}; for (int x : numbers){ if (x == 3){ continue; } System.out.println("x:"+x); } } }
5.java关键字break:
public class breakDome { public static void main(String[] arys){ int[] numbers = {1,2,3,4,5}; for (int x : numbers){ if (x == 3){ break; } System.out.println(x); } } }
结果对于大家来说肯定都知道是啥啦。如果有不知道答案的,直接拷贝运行即可。