title: which is faster, creating new variable vs reusing old variable?
body: <p>which is faster creating new variable or reusing old one for java programming language?
  example </p>
  
  <p>case 1: creating </p>
  
  <pre><code>int x = 5;
  int var = 1;
  </code></pre>
  
  <p>case 2: reusing old one</p>
  
  <pre><code>int x = 5;
  x = 1;
  </code></pre>