一:使用if语句对各种情况进行判断即可。
二:代码
package exp12;
import java.util.Scanner;
public class exp12_1 {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("请输入数学成绩:");
double a = sc.nextInt();
System.out.println("请输入理科成绩:");
double b = sc.nextInt();
System.out.println("请输入文科成绩:");
double c = sc.nextInt();
double sum;
sum = (a + b + c) / 3;
// 档次
String score;
// 奖学金
double scholarship;
// 判断
if ((sum >= 90)) {
score = "优";
System.out.println("成绩为:" + score);
scholarship = 500.00;
System.out.println("奖学金" + scholarship);
} else if ((80 <= sum) && (sum < 90)) {
score = "良";
System.out.println("成绩为:" + score);
scholarship = 200.00;
System.out.println("奖学金" + scholarship);
} else if ((70 <= sum) && (sum < 80)) {
score = "中";
System.out.println("成绩为:" + score);
scholarship = 50.00;
System.out.println("奖学金" + scholarship);
} else if ((60 <= sum) && (sum < 70)) {
score = "及格";
System.out.println("成绩为:" + score);
scholarship = 0;
System.out.println("奖学金" + scholarship);
} else {
score = "不及格";
System.out.println("成绩为:" + score);
scholarship = 0;
System.out.println("奖学金" + scholarship);
}
}
}