title: having trouble replacing default zeros in 2d array with white spaces
body: <p>My goal to to make three different 2D arrays, and for the last two replace all zeroes in the array values for blank spaces instead.  I've tried using printf("%s","[]") but instead of replacing the zeros they just add the brackets above the array. i believe it has something to do with the placement of my else statement. </p>
  
  <pre><code>public class arrayprgm1{
      public static int[][] Table(int x, int y){//creating first 2D array 
          int[][] array = new int[x][y];
          for (int row= 0; row &lt; array.length; row++){// using for loop to create array
              for (int column=0;column&lt;array[row].length;column++){//nested for loop
                      array[row][column]=(row+column)*3;// algorithm used for first 2D array
                  }
              }
          int sum = 0;//declaring integer to sum up all of the values created by array 
          for (int row=0; row &lt; array.length; row++){
              for (int column=0; column &lt; array[row].length; column++){
                  sum = sum + array[row][column];// algorithm used to sum up values of first array
      } 
      }
      System.out.printf("The total of all the numbers added together is: %2d\n", sum);// using format print to display sum
              return array;//return array created to the main method
          }//end of Table method
  
      public static int[][] Odds(int x, int y){//creating second 2D array
          int[][]array = new int[x][y];
          for (int row= 0; row &lt; array.length; row++){// using for loop to create array
              for (int column=0;column&lt;array[row].length;column++){//nested for loop
                  {
                  if ((row + column)%2 !=0){ // if statement used to determine if value is odd or even
                      array[row][column]=(row+column)*3;// algorithm used for second array                
                  }
                  else
                      System.out.printf("%s","[]");
              }
              }
          }
          int sum = 0;//declaring integer to sum up all of the values created by array
          for (int row=0; row &lt; array.length; row++){
              for (int column=0; column &lt; array[row].length; column++){
                  sum = sum + array[row][column];// algorithm used to sum up all odd values
      }
      }
      for(int row=0; row&lt; array.length;row++){
          for(int column=0;column&lt;array[row].length;column++){
  
          }
      }System.out.printf("The total of all the odd numbers added together is: %2d\n", sum);//format print used to display sum of all odd numbers
          return array;
      }//end of Odds Method
  
      public static int[][] Evens(int x, int y){ //Creating the third 2D array that will hold all even values
          int[][] array = new int[x][y];
          for (int row= 0; row &lt; array.length; row++){//for loop to create array
              for (int column=0;column&lt;array[row].length;column++){//nested for loop
                  {
                  if ((row + column)%2 ==0){//if statement used to determine if value is odd or even
                      array[row][column]=(row+column)*3;//algorithm used for third array
                  }
                  else
                      System.out.printf("%s","[]");
              }
          }
          }       
          int sum = 0;// declaring integer to sum up all the even values
          for (int row=0; row &lt; array.length; row++){//for loop to create array
              for (int column=0; column &lt; array[row].length; column++){//nested for loop
                  sum = sum + array[row][column];// algorithm used to sum up all even numbers
      }
      }
      System.out.printf("The total of all the even numbers added together is: %2d\n", sum);// format print used to display sum of all even numbers
          return array;
      }//end of Evens method
  
  
      public static void main(String[] args){//main method
          int[][]array  = new int[15][15];//create array to pass to arrays method
          array = Table(15,15);
          for(int row=0; row &lt; array.length; row++){ //for loop to properly display array in a square
              for(int column=0; column&lt;array[row].length;column++){//nested for loop
                  System.out.printf("%4d",array[row][column]);//format the print
      }
      System.out.printf("\n");
      }
      System.out.printf("\n");
  
          array = Odds(15,15);
  
          for(int row=0; row &lt; array.length; row++){//for loop to properly display array in square
              for(int column=0; column&lt;array[row].length;column++){//nested for loop      
                  System.out.printf("%4d",array[row][column]);//format the print  
                  }   
      System.out.printf("\n");
      }
      System.out.printf("\n");
  
          array = Evens(15,15);
          for(int row=0; row &lt; array.length; row++){//for loop to properly display array in square
              for(int column=0; column&lt;array[row].length;column++){//nested for loop
                  System.out.printf("%4d",array[row][column]);//format the print
      }
      System.out.printf("\n");
      }
  }//end of main method
  }//end of public class arrayprgm1
  </code></pre>