从键盘读入学生成绩，找出最高分，并输出学生成绩等级,Java

//从键盘读入学生成绩，找出最高分，并输出学生成绩等级。
//等级>=最高分-10，等级为‘A’
//等级>=最高分-20，等级为‘B’
//等级>=最高分-30，等级为‘C’
//其余，等级为‘D’
package com.company;
import java.util.Scanner;
public class Main {public static void main(String[] args) {System.out.println("please enter the number of students:");Scanner scanner =new Scanner(System.in);int i=scanner.nextInt();int max_i=0, max=0;int[] arr=new int[i];for(int j=0;j<i;j++) {System.out.println("please enter the score of student"+(j+1));int scoer=scanner.nextInt();arr[j]=scoer;if(scoer>max){max=scoer;max_i=j;}}System.out.println("The students with the highest score are :"+(max_i+1)+ ",score is："+arr[max_i]);for (int k=0;k<i;k++){switch((max-arr[k])/10){case 0:System.out.println("student "+(k+1)+" score is "+arr[k]+",grade is A");break;case 1:System.out.println("student "+(k+1)+" score is "+arr[k]+",grade is B");break;case 2:System.out.println("student "+(k+1)+" score is "+arr[k]+",grade is C");break;default:System.out.println("student "+(k+1)+" score is "+arr[k]+",grade is D");break;}}}
}

从键盘读入学生成绩，找出最高分，并输出学生成绩等级,Java

//从键盘读入学生成绩，找出最高分，并输出学生成绩等级。
//等级>=最高分-10，等级为‘A’
//等级>=最高分-20，等级为‘B’
//等级>=最高分-30，等级为‘C’
//其余，等级为‘D’
package com.company;
import java.util.Scanner;
public class Main {public static void main(String[] args) {System.out.println("please enter the number of students:");Scanner scanner =new Scanner(System.in);int i=scanner.nextInt();int max_i=0, max=0;int[] arr=new int[i];for(int j=0;j<i;j++) {System.out.println("please enter the score of student"+(j+1));int scoer=scanner.nextInt();arr[j]=scoer;if(scoer>max){max=scoer;max_i=j;}}System.out.println("The students with the highest score are :"+(max_i+1)+ ",score is："+arr[max_i]);for (int k=0;k<i;k++){switch((max-arr[k])/10){case 0:System.out.println("student "+(k+1)+" score is "+arr[k]+",grade is A");break;case 1:System.out.println("student "+(k+1)+" score is "+arr[k]+",grade is B");break;case 2:System.out.println("student "+(k+1)+" score is "+arr[k]+",grade is C");break;default:System.out.println("student "+(k+1)+" score is "+arr[k]+",grade is D");break;}}}
}