自学写了一个简单的学生成绩排名高手勿喷啊 - 黑马程序员技术交流社区

package com.hu.student;
import java.util.*;
public class Main {
public static void main(String[] agrs) {
Scanner in = new Scanner(System.in);
System.out.print("请输入学生的人数：");
int renshu = in.nextInt();
System.out.print("请输入课程的数目：");
int course = in.nextInt();
int[] sum = new int[renshu];
int[] avg = new int[renshu];
String[] arrRenshu = new String[renshu];// 接收学生的人数
String[] arrCourse = new String[course];// 接收科目的数量
int[][] number = new int[renshu][course];
String[] str = new String[renshu]; //学生参数汇总
for (int i = 0; i < course; i++) {
System.out.print("请输入第" + (i + 1) + "的科目名称：");
arrCourse[i] = in.next();
}
for (int i = 0; i < renshu; i++) {
int s = 0;
String str11 = "";
System.out.print("请输入第" + (i + 1) + "个学生的名字：");
arrRenshu[i] = in.next();
for (int j = 0; j < course; j++) {
System.out.print("请输入" + arrRenshu[i] + arrCourse[j] + "的成绩：");
number[i][j] = in.nextInt();
s += number[i][j];
str11+= number[i][j]+"\t";
}
sum[i] = s;
avg[i] = s / course;
str[i] = arrRenshu[i]+"\t"+str11+sum[i]+"\t"+avg[i];
}
for(int i=0; i<sum.length-1; i++){
for(int j=0; j<sum.length-1; j++){
if(sum[j]<sum[j+1]){
int t1 = sum[j]; String t2 = str[j];
sum[j] = sum[j+1]; str[j] = str[j+1];
sum[j+1] = t1; str[j+1] = t2;
}
}
}
System.out.print("学生");
for (int i = 0; i < course; i++) {
System.out.print("\t" + arrCourse[i]);
}
System.out.print("\t总分" + "\t平均分" + "\t排行榜");
System.out.println();
for (int i = 0; i < renshu; i++) {
System.out.print(str[i]+"\t第"+(i+1)+"名");
System.out.println();
}
}
}

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package com.sun.question;
import java.util.*;
public class Main {
public static void main(String[] agrs) {
Scanner in = new Scanner(System.in);
System.out.print("请输入学生的人数：");
int renshu = in.nextInt();
System.out.print("请输入课程的数目：");
int course = in.nextInt();
int[] sum = new int[renshu];
int[] avg = new int[renshu];
String[] arrRenshu = new String[renshu];// 接收学生的人数
String[] arrCourse = new String[course];// 接收科目的数量
int[] score = new int[course];
String[] str = new String[renshu]; //学生参数汇总
for (int i = 0; i < course; i++) {
System.out.print("请输入第" + (i + 1) + "的科目名称：");
arrCourse[i] = in.next();
}
for (int i = 0; i < renshu; i++) {
int s = 0;
String str11 = "";
System.out.print("请输入第" + (i + 1) + "个学生的名字：");
arrRenshu[i] = in.next();
for (int j = 0; j < course; j++) {
System.out.print("请输入" + arrRenshu[i] + arrCourse[j] + "的成绩：");
score[j] = in.nextInt();
s += score[j];
str11+= score[j]+"\t";
}
sum[i] = s;
avg[i] = s / course;
str[i] = arrRenshu[i]+"\t"+str11+sum[i]+"\t"+avg[i];
}
for(int i=0; i<sum.length-1; i++){
for(int j=0; j<sum.length-1; j++){
if(sum[j]<sum[j+1]){
int t1 = sum[j]; String t2 = str[j];
sum[j] = sum[j+1]; str[j] = str[j+1];
sum[j+1] = t1; str[j+1] = t2;
}
}
}
System.out.print("学生");
for (int i = 0; i < course; i++) {
System.out.print("\t" + arrCourse[i]);
}
System.out.print("\t总分" + "\t平均分" + "\t排行榜");
System.out.println();
for (int i = 0; i < renshu; i++) {
System.out.print(str[i]+"\t第"+(i+1)+"名");
System.out.println();
}
}
}

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