title: Index of 2D array in java
body: <p>Is it possible to get the index of a 2D array?
  Suppose I have the following array</p>
  
  <pre><code>int[][] arr = {{41, 44, 51, 71, 63, 1}, {7, 88, 31, 95, 9, 6}, {88, 99, 6, 5, 77, 4}};
  </code></pre>
  
  <p>And I want to get the index of 88, how to do it?</p>