Random boolean 2d-array in Java returning always "false" -

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i wanted create random boolean 2d-array returns false...a problem operator "&&"? don't it...

public static void main(string[] args){      boolean[][] arr = new boolean[5][5];     random r = new random();     boolean row = r.nextboolean();     boolean col = r.nextboolean();      for(int i=0 ; i<arr.length ; i++){          for(int j=0;j<arr[i].length;j++){          arr[i][j] = row && col;          system.out.print(arr[i][j]+"\t");      }  }

i think want create new random boolean each cell in array this:

public static void main(string[] args){      boolean[][] arr = new boolean[5][5];     random r = new random();      for(int = 0; < arr.length; i++){         for(int j = 0; j < arr[i].length; j++){              arr[i][j] = r.nextboolean();              system.out.print(arr[i][j]+"\t");         }     }    }

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