java编写一个程序通过键盘录入学生成绩并进行排行

拼搏现实的明天。 2023-10-03 08:57 25阅读 0赞

package T1;
    import java.util.Scanner;
    
    
    public class E {
    
    
            public static void main(String[] args) {
                System.out.println("java编写一个程序通过键盘录入学生成绩并进行排行");
                
                Scanner in = new Scanner(System.in);
                System.out.println("请输入学生的人数：");
                int renshu = in.nextInt();
                System.out.println("请输入课程的数目：");
                int coursenum = in.nextInt();
                String[]student =new String[renshu];
                String[]course =new String[coursenum];
                int[][] number = new int[renshu][coursenum];
                int[] sum=new int[renshu];
                int[] avg=new int[renshu];
                String[]str =new String[renshu];
                
                for (int i = 0; i < course.length; i++) {
                    System.out.println("请定义第" + (i + 1) + "门课程的名字");
                    course[i] = in.next();
                }
                for (int i = 0; i < renshu; i++) {
                    int S=0;//声明一个S，初始值为0
                    System.out.println("请输入学生的名字");
                    student[i] = in.next();//用来存储学生的姓名
                    String str11="";
    
                    for (int j = 0; j < coursenum; j++) {
                        System.out.println("请输入学生" + student[i] + course[j] + "的成绩");
                        number[i][j] = in.nextInt();//用来存储特定学生的特定成绩
                        S+=number[i][j];
                        str11+=number[i][j]+"\t";
    
                    }
                    sum[i]=S;//求出此学生的总分存入总分组
                    avg[i]=S/coursenum;//求出此同学的平均分存入平均分数组
                    str[i]=student[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+i]) {
                            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;
                        }
                    }
                }
                /*
                 *效果
                 */
                System.out.print("学生");
                for (int i = 0; i < course.length; i++) {
                    System.out.print("\t" + course[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.println(str[i]+"\t第"+(i+1)+"名");
                }
                
            }
    
        }