title: how to put multidimensional array in shared preferences in android
body: <p>basically my array is in this format an i want to store this in shared preferences
  but dont know how  will someone give me idea or code </p>
  
  <p>i am working with dynamic content</p>
  
  <pre><code>String[][] my_date;
  my_date = new String[][] {
                  {"14","26"},
                  {"12","16","24","27"},
                  {"17"},
                  {"8","13","18"},
                  {"14"},
                  {},
                  {"29"},
                  {"15","18"},
                  {},
                  {"2","3","6","8","23"},
                  {"4","6","24"},
                  {}
          };
  </code></pre>