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a guest Apr 20th, 2019 72 Never
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  1. output now:-
  2. 0
  3. 1 2
  4. 3 4 5
  5. 6 7 8 9
  6.  
  7.  
  8.  
  9.  
  10.  
  11. // Array row column print..in 2D Diamontional new print..
  12.  
  13.  
  14.         //initilize array create just row, not column
  15.         int [][] num = new int[4][];
  16.  
  17.  
  18.         //first row column declare..
  19.         // 0 num row a column thakbe 1 ta.
  20.         // 1 num row a column thakbe 2 ta.
  21.  
  22.  
  23.         //row er under a column create,  row num[0] a akta column new int[1]; create korlam.
  24.         num[0] = new int[1];
  25.         num[1] = new int[2];
  26.         num[2] = new int[3];
  27.         num[3] = new int[4];
  28.  
  29.        
  30.         //initlize the value.
  31.         int k = 0;
  32.  
  33.         //create row with every looping 1 add to column with asign to num..
  34.         for (int i =0; i<4; i++){
  35.  
  36.             for (int j =0; j<i+1; j++){
  37.  
  38.                 // num asign korte hobe 1 , 1 kore barate hobe.
  39.  
  40.                 num[i][j] = k;
  41.                 k++;
  42.             }
  43.         }
  44.  
  45.  
  46.  
  47.          // display show this array now...
  48.         for (int i=0; i<4; i++){
  49.  
  50.             for (int j=0; j<i+1; j++){
  51.  
  52.                 System.out.print(num[i][j]+" ");
  53.             }
  54.  
  55.             System.out.println();
  56.         }
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