title: Where do we need to pass the value for System.getProperty in Eclipse
body: <p>I have imported an existing Java EE application into my Eclipse IDE.</p>
  
  <p>I found this piece of code under it </p>
  
  <pre><code>public static String decideEnv() {
          String env = null;
          env = (String) System.getProperties().get("TB_ENVIRONEMNT");
              return env;
      }
  </code></pre>
  
  <p>could anybody please let me know from where exactly it gets the value with this line </p>
  
  <pre><code>System.getProperties().get("TB_ENVIRONEMNT")
  </code></pre>
  
  <p>Do we need to set this value anywhere ??</p>