title: How to store a string into HashMap using StringTokenizer
body: <pre><code>String input = "key1=value1&amp;key2=value2&amp;key3=value3&amp;key4=value4&amp;key5=value5";
  </code></pre>
  
  <p>How can I store the key-value pairs into a <code>HashMap</code> object using <code>StringTokenizer</code>?</p>