数组求最大，最小，和，平均 学习笔记

package com.ctgu.java.exer;

public class TestArray3 {
public static void main(String[] args){
int[] arr = new int[]{12,43,9,0,-65,-99,100,9};
int max = arr[0];
for(int i = 1; i < arr.length;i++ ){
if(max < arr[i]){
max = arr[i];

}
}
System.out.println("数组最大值为：" + max);
int min=arr[0];
for(int i = 1;i< arr.length;i++){
if(min >arr[i]){
min = arr[i];

}

}
System.out.println("数组最小值为：" + min);
int sum = 0;
for(int i = 0; i < arr.length; i++){
sum +=arr[i];

}
System.out.println("总和为：" +sum);
int avg = 0;
avg = sum / arr.length;
System.out.println("平均数为：" +avg );

}

}