With Compilable interface you store the intermediate code of an entire script : Script Engines « JDK 6 « Java

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Java » JDK 6 » Script EnginesScreenshots 
With Compilable interface you store the intermediate code of an entire script
    

import javax.script.Compilable;
import javax.script.CompiledScript;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;

public class CompilableDemo {

  public static void main(String[] argsthrows Exception {
    ScriptEngineManager manager = new ScriptEngineManager();
    ScriptEngine engine = manager.getEngineByName("js");

    Compilable jsCompile = (Compilableengine;
    CompiledScript script = jsCompile.compile("function hi () {print ('www.java2java.com !'); }; hi ();");

    for (int i = 0; i < 5; i++) {
      script.eval();
    }
  }
}
//www.java2java.com !www.java2java.com !www.java2java.com !www.java2java.com !www.java2java.com !

          
    
    
  
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6. Any script have to be compiled into intermediate code.
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19. Retrieving the Metadata of Script Engines
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22. Retrieving the Registered Name of a Scripting Engine
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33. Compresses a String containing JavaScript by removing comments and whitespace.
34. Escape and unescape javascript code
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