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我想将坐标 x 和 y 插入两个维度数组并打印出来。对于给定代码的示例，当它要求输入时，它不会执行一次，而是两次接受该值。如果值实际上存储在每个数组中或仅存储在一个数组中，我不知道。是否可以独立于矩阵显示输出？我感谢任何帮助或更正！祝福你。这是代码：

代码

import java.util.Scanner;

public class MummyMadness {
    
    public static void main(String []args){
        
   
    int [][] desert = new int [1][1];
    int x =0;
    int y =0;
    int mummies[] = new int [1];
    int Mlimit = 100000;
    
    
    coordinates(desert,mummies,x,y);
    }
    public static int[] inputmummy(int mummies[], int Mlimit){
        int i;
        Scanner input = new Scanner(System.in);
        System.out.println("How many mummies you want?");
        System.out.println("Note that the limit of mummies is 100k");
        i = input.nextInt();
    
        if(mummies[i] > Mlimit)
        {
            System.out.println("You exceeded from the mummies!");
        }
        
            
        return mummies;
    }
    

    
    public static int[][] coordinates(int desert[][],int mummies[], int x, int y){

        
        //Idea use length of mummies for coordinates but if you take out desert i doesnt work
        
       
         System.out.println("Enter mummy coordinates");
        
           for(int i = 0; i < desert.length; i++){
               
         System.out.println("Enter x:"); 
         Scanner input = new Scanner(System.in);
            
              if(input.nextInt() > desert.length)
              {
                  System.out.println("Error x exceeded desert length");
                  break;
              }
               desert[i][0] = input.nextInt();
               
            System.out.println("Mummy location x: " + desert[i][0]);
            
            for(int j = 0; j < mummies.length; j++){
                
         System.out.println("Enter y:");     
         Scanner input2 = new Scanner(System.in);
                
                if(input.nextInt() > desert[0].length)
              {
                  System.out.println("Error y exceeded desert length");
                  break;
              }
                
                 desert[0][j] = input2.nextInt();
               
                System.out.println("Mummy location y: " + desert[0][j]); 
                System.out.println(desert[i][j])
               
                  
            }
 
        }
    
        return desert; 
    
        }
          
    }
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1 回答 1

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您正在使用 input.nextInt 两次（） - 一次用于检查，一次用于实际插入数组。每次调用此函数时，它都需要输入。因此它要求输入两次。改为这样做：

int tmp = input.nextInt();
if(tmp > desert.length)
{
    System.out.println("Error x exceeded desert length");
    break;
}
desert[i][0] = tmp;
于 2013-04-16T05:07:32.683 回答