title: Java constant variable, naming convention
body: <p>Is there any naming convention for java constant variable?<br/>
  Normally we use variables with names containing uppercase letters and underscores(<code>_</code>).<br/></p>
  
  <p>For example:</p>
  
  <pre><code>public final class DeclareConstant {
  
      public static final String CONSTANT_STRING = "some constant";
  
      public static final int CONSTANT_INTEGER = 5;
  
  }
  </code></pre>