1.普通的for循环
2.for-each循环(增强for循环)
3.数组做方法入参
4.数组做返回值
package com.wuming.struct; public class Demo11 { public static void main(String[] args) { int[] arrays={1,2,3,4,5}; //打印全部数组元素 for (int i = 0; i < arrays.length; i++) { System.out.println(arrays[i]); } System.out.println("============="); //计算所有元素的和 int sum=0; for (int i = 1; i < arrays.length; i++) { sum+=arrays[i]; } System.out.println("sum="+sum); System.out.println("=============="); //查找最大元素 int max=arrays[0]; for (int i = 0; i < arrays.length; i++) { if (arrays[i]>max){ max=arrays[i]; } } System.out.println("max="+max); } }
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=============
sum=14
==============
max=5