title: Convert character value to hexa in java
body: <p>I have method to covert character to haxa like </p>
  
  <pre><code>private static String convert(char str)
      {
          StringBuffer ostr = new StringBuffer();
          String hex = Integer.toHexString(str &amp; 0xFFFF);  
          for(int j=0; j&lt;4-hex.length(); j++) 
              ostr.append("0");
          ostr.append(hex.toUpperCase());
  
          return (new String(ostr));      
  
      }
  </code></pre>
  
  <p>Its work fine for window but create problem for linux.
  Can any one suggest me how to do same thing in linux ?</p>