2 Dimentional Array

[Arosha Perera]

I need to know how to display some data like this.

" " 1 2 3 3 5
2 4 5 5 7 8
6 8 8 5 6 2
4 2 4 7 7 5
3 5 5 7 9 3

I know how to display data in a rectangular form using two for loops and using length attribute in arrays.
But I don't know how do I get the [0][0] th element empty. (I've represented the space like this " ")
I put NULL and tried but it didn't work.

Please be kind enough to help me. Thank you

[David Newton]

It depends on the data type. If the array is of primitive ints, say, you'd have to use a zero (0), not a null. If it's an array of objects, you can use null. But that won't necessarily display the way you want.

In order to get a space you'd need to either use a datatype that allowed spaces (like strings), or do a conversion during the display process (like null-to-space). I'm sure there are other solutions too.

[Arosha Perera]

ummm, I don't understand.

I am new to this language actually. Here's what i have been going through..

    
    class G {
    public static void main(String []args){

     int x[][]={{8,8,3,1},{1,2,1,3},{3,4,3,1},{5,6,8,2},{7,8,7,3}}; //some data
        
     for(int i=0;i<x.length;i++){
         for(int j=0;j<x[i].length;j++){
             
             System.out.print(x[i][j]+" ");
             
         }
            System.out.println();
     }
   }
  }
  

This is how I have learned, is there a way to put a empty space on [0][0] th?

[David Newton]

Please UseCodeTags when posting code or configuration. Unformatted code and configuration is very difficult to read. You can edit your post to include them by using the button.

[Arosha Perera]

Please Excuse for the inconvenience ...Thank you

[David Newton]

You could also check for specific array indices, and it's the right one(s), display a space instead of the array value.

[Arosha Perera]

You mean like this?

    
class G {
    public static void main(String []args){
int x[][]={{" ",8,3,1},{1,2,1,3},{3,4,3,1},{5,6,8,2},{7,8,7,3}};
        
     for(int i=0;i<x.length;i++){
         for(int j=0;j<x[i].length;j++){
             
             System.out.print(x[i][j]+" ");
             
         }
            System.out.println();
     }
     
    }
}



  

Then it gives an error saying incompatible types

[David Newton]

Then that's probably not what I mean ;)

No, I meant during the looping/printing.