Java-二维数组-全班学生成绩记录表

╰+哭是因爲堅強的太久メ 2023-02-21 12:50 5阅读 0赞

import java.util.Scanner;
    
    public class Demo07 {
        
    
    	public static void main(String[] args) {
        
    		// TODO 自动生成的方法存根
    		Scanner scanner=new Scanner(System.in);
    		System.out.println("请输入本版学生总数");
    		int studentcout=scanner.nextInt();
    		int achivement[][]=new int[studentcout][4];
    		for(int i=0;i<studentcout;i++) {
        
    			System.out.println("请输入第"+(i+1)+"个学生的编号");
    			achivement[i][0]=scanner.nextInt();
    			System.out.println("请输入语文成绩：");
    			achivement[i][1]=scanner.nextInt();
    			System.out.println("请输入数学成绩：");
    			achivement[i][2]=scanner.nextInt();
    			System.out.println("请输入英语成绩：");
    			achivement[i][3]=scanner.nextInt();
    		}
    		System.out.println("学生成绩结果如下");
    		System.out.println("--------------------");
    		System.out.print("学生编号\t语文成绩"
    				+ "\t数学成绩\t"+ "英语成绩\t平均成绩\t总成绩");
    		
    		for(int i=0;i<achivement.length;i++) {
        
    			double sum=0;//总成绩
    			double ave=0;//平均成绩
    			for(int j=0;j<achivement[i].length;j++) {
        
    				System.out.print(achivement[i][j]+"\t");
    				if(j>0) {
        
    					sum+=achivement[i][j];
    				}
    			}
    			ave=sum/3;
    			System.out.print(String.format("%.2f", ave)+
    					"\t"+(int)sum+"\n");
    			
    		}
    	}
    
    }

> 浏览效果

![浏览效果][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTg0MzY3Ng_size_16_color_FFFFFF_t_70_pic_center]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTg0MzY3Ng_size_16_color_FFFFFF_t_70_pic_center]: https://img-blog.csdnimg.cn/20200630210817992.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTg0MzY3Ng==,size_16,color_FFFFFF,t_70#pic_center