成绩表

import java.util.Scanner;//导入

public class chengji {

    public static void main(String[] args) {
        
        int rs=0;
        Scanner arr=new Scanner(System.in);//初始化扫描器
        
        System.out.println("请输入班级人数：");
        
        rs=arr.nextInt();//接受，等待输入，回车结束，返回字符串
         
        double c[]=new double [rs];//rs数组长度
        
        System.out.println("请输入成绩：");
        
        Scanner ar=new Scanner(System.in);
        
        double sum =0;
        for (int i=0;i<c.length;i++)
        {
            c[i]=ar.nextDouble();//接受扫描数据
            
            sum+=c[i]; 
        }
        System.out.println("成绩总和："+sum);
        
        for (int j=0; j<c.length;j++)
            for(int i=0;i<c.length-1-j;i++){
                if(c[i]>c[i+1]){
                    double x=c[i];
                            c[i]=c[i+1];
                            c[i+1]=c[i];
                }
                
            }
        System.out.println("输出最高成绩："+c[c.length-1]);
        
        System.out.println("输出最低成绩："+c[0]);
        
        System.out.println("输出平均成绩："+sum/c.length);
    }
    

}