根据输入不同分数输出成绩等级

public class TestMain {
    public static void main(String[] args) {
        displayTitle();
        while(true){
            int s = getExam();
            String info = determineGrade(s);
            showMessage(info);
        }
    }
    public static void displayTitle(){
        System.out.println("Grade Classifier");
        System.out.println("****************\n");
    }
    public static int getExam(){
        Scanner sc = new Scanner(System.in);
        System.out.print("Enter exam mark:> ");
        return sc.nextInt();
    }
    public static String determineGrade(int score){
        String g;
        if(score>=70 && score<=100){
            g = "Congratulations,you are awarded a Grade A Pass.";
        }else if(score>=60 && score<=69){
            g = "Congratulations,you are awarded a Grade B Pass.";
        }else if(score>=50 && score<=59){
            g = "Congratulations,you are awarded a Grade C Pass.";
        }else if(score>=40 && score<=49){
            g = "Congratulations,you are awarded a Grade D Pass.";
        }else{
            g = "Unfortunately,you are awarded a Grade F Fail.";
        }
        return g;
    }

    public static void showMessage(String g){
        System.out.println(g);
    }
}

public class Test {
    public static void main(String[] args) {
         Scanner input=new Scanner(System.in);
         int score;
         System.out.print("Enter exam mark:>");
         score=input.nextInt();
         if (score >= 70 && score<= 100) {
              System.out.println("you are awarded a Grade A Pass");
         } else if (score>= 60 && score <= 69) {
             System.out.println("you are awarded a Grade B Pass");
         } else if (score >= 50 && score <= 59) {
             System.out.println("you are awarded a Grade C Pass");
         } else if (score >= 40 && score <= 49) {
             System.out.println("you are awarded a Grade D Pass");
         } else if (score >= 0 && score <= 39) {
             System.out.println("you are awarded a Grade F (Fail)");
         }
    }
}

和楼上想法一致