title: Multiplying 2d array in java
body: <p>I have declared an array that i would like to multiply the value of the first column  by value of the second column of each row and create a grand sum of these products. I have tried the code listing below, what am i missing</p>
  
  <pre><code>public class Arrays {
      public static void(String[] args) {
  
          int array_x[][]={{9,8},{2,17},{49,4},{13,119},{2,19},{11,47},{3,73}};
          int sum = 0;
  
          for (int i = 0; i &lt; array_x.length; i++) {
              for (int j = 0; j &lt; array_x.length; j++) {
                  array_x[i][j] = i * j;
                  System.out.println("\n" + array_x[i][j])
              }
          }
  
      }
  }
  </code></pre>
  
  <p>The output should be something like
  9*8=72
  2*17=34 etc then sum the whole results as 72+34+....</p>