Evaluating Logical Expressions

Today, I used Java 6 Scripting API to evaluate logical expressions. Here is an example:

import javax.script.*;
public class EvalScript {
    public static void main(String[] args) throws Exception {
        // create a script engine manager
        ScriptEngineManager factory = new ScriptEngineManager();
        // create a JavaScript engine
        ScriptEngine engine = factory.getEngineByName("JavaScript");
        // evaluate JavaScript code from String
        Boolean result=(Boolean)engine.eval("'sometext'=='sometext'");

                      //result will be true
     }
  }

Reference

http://docs.oracle.com/javase/6/docs/technotes/guides/scripting/programmer_guide/index.html