java输入输出学生成绩_java从键盘输入学生成绩，找出最高分，并输出学生成绩等级。...
/*从键盘输入学生成绩，找出最高分，并输出学生成绩等级；成绩 >=最高分-10 等级为A成绩 >=最高分-20 等级为B成绩 >=最高分-30 等级为C其余为 等级为D提示：先输入学生人数，根据人数创建int数组，存放学生成绩；*/package study01;
import java.util.Scanner;
public class Score {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.print("请输入学生人数:");
int length = sc.nextInt();
int[] scores = new int[length];
int maxScore = 0;
for (int i = 0; i < scores.length; i++) {
scores[i] = sc.nextInt();
if (scores[i] > maxScore) {
maxScore = scores[i];
}
}
System.out.println("最高分" + maxScore);
System.out.println("输入的成绩为:");
for (int i = 0; i < scores.length; i++) {
char level;
if (scores[i] > maxScore - 10) {
level = 'A';
} else if (scores[i] > maxScore - 20) {
level = 'B';
} else if (scores[i] > maxScore - 30) {
level = 'C';
} else {
level = 'D';
}
System.out.println("student["+i+"] score is "+scores[i]+" grade is "+level);
}
}
}输出结果如下：
请输入学生人数:6
90
70
80
50
60
40
最高分90
输入的成绩为:
student[0] score is 90 grade is A
student[1] score is 70 grade is C
student[2] score is 80 grade is B
student[3] score is 50 grade is D
student[4] score is 60 grade is D
student[5] score is 40 grade is D
来源：https://www.cnblogs.com/wangyuebo/p/6130854.html