流程控制08 增强For循环

package com.xiyue.struct;
public class ForDemo04 {
    public static void main(String[] args) {
        for (int i = 1; i <= 9; i++) {
            for (int j = 1; j <=i; j++) {
                System.out.print(j+"*"+i+"="+i*j+"t");
            }
            System.out.println();
        }
    }
}

增强for循环就是把for循环写得更简洁一点。

package com.xiyue.struct;
public class ForDemo05 {
    public static void main(String[] args) {
        int[] numbers={10,20,30,40,50};//定义了一个数组
        for (int i=0;i<5;i++){
            System.out.println(numbers[i]);
        }
        System.out.println("===========================");
        //遍历数组的元素
        for(int x:numbers){
            System.out.println(x);
        }
    }
}