编程:录入班级人数、学员成绩全班平均分;
Scanner s=new Scanner(System.in); System.out.println("请输入您班上的人数:"); int people=s.nextInt(); int i=1; int sum=0; while(i<=people){ System.out.println("请输入学号"+i+"的成绩!"); int score=s.nextInt(); while(score<0||score>100){ System.out.println("您输入的分数有误,请重新输入:"); score=s.nextInt(); } sum=sum+score; i++; } int avg=sum/people; System.out.println("全班平均成绩为:"+avg);
while中还可以嵌入while,不满足条件时就一直循环。
原文:http://blog.csdn.net/qianquan003/article/details/22854323