title: syntax error, invalid character when declaring constants
body: <p>In my code I declared the below posted constants. but eclipse marked them with red, with error message :</p>
  
  <pre><code>syntax error, invalid character
  </code></pre>
  
  <p>please let me know why i am getting this error, and how to solve it.</p>
  
  <p><strong>constants</strong>:</p>
  
  <pre><code>private final static int CONST_MASTER_CARD_MIN_1 = 222100​;
  private final static int CONST_MASTER_CARD_MAX_1 = 272099;
  private final static int CONST_MASTER_CARD_MIN_2 = 510000​;
  private final static int CONST_MASTER_CARD_MAX_2 = ​559999;
  </code></pre>