The code below will evaluate a simple script that produces a Hello World message. The evaluate the script, the ScriptEngine provides us with some overloaded eval() method, that for instance accept the script in string or in Reader object.
package org.kodejava.example.script;
import javax.script.ScriptEngineManager;
import javax.script.ScriptEngine;
import javax.script.ScriptException;
public class EvaluatingScript {
public static void main(String[] args) {
//
// Obtaining JavaScript' ScriptEngine from the ScriptManager
// using the engine extension.
//
ScriptEngineManager manager = new ScriptEngineManager();
ScriptEngine js = manager.getEngineByExtension("js");
try {
//
// Evaluating a simple script
//
js.eval("print('Hello World')");
} catch (ScriptException e) {
e.printStackTrace();
}
}
}