知识点:
1、数组的声明:例子:int[] scores = new int[5];
2、向数组赋值:scores[i] = input.nextInt();
package com.javaketang.output.homework01; //求5位学生的平均成绩 import java.util.Scanner; public class AddUpTheScoresOf5Students { public static void main(String[] args) { int[] scores = new int[5];// 成绩数组 int sum = 0; Scanner input = new Scanner(System.in); System.out.println("请输入5位学生的成绩"); for (int i = 0; i < scores.length; i++) { scores[i] = input.nextInt(); sum = sum + scores[i];// 成绩累加 } // 计算并输出平均分 System.out.println("学生的平均分是:" + (double) sum / scores.length); } }