Example usage for javax.script ScriptEngine eval

Introduction

In this page you can find the example usage for javax.script ScriptEngine eval.

Prototype

public Object eval(Reader reader) throws ScriptException;

Source Link

Document

Same as eval(String) except that the source of the script is provided as a Reader

Usage

From source file:ScriptExecutionDemo.java

public static void main(String[] args) throws ScriptException {
    ScriptEngineManager manager = new ScriptEngineManager();
    ScriptEngine jsEngine = manager.getEngineByExtension("js");
    jsEngine.eval("println ('Hello! JavaScript executed from a Java program.')");
}

From source file:Main.java

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

    engine.eval("var msg = 'Hello globals'");
    engine.eval("print(this.msg);");
    ScriptContext ctx = new SimpleScriptContext();
    engine.eval("print(this.msg);", ctx);
}

From source file:InterfaceTest.java

public static void main(String args[]) throws Exception {
    ScriptEngineManager manager = new ScriptEngineManager();
    ScriptEngine engine = manager.getEngineByName("javascript");
    engine.eval("function run() {print('www.java2s.com');}");
    Invocable invokeEngine = (Invocable) engine;
    Runnable runner = invokeEngine.getInterface(Runnable.class);
    Thread t = new Thread(runner);
    t.start();//from   w  w  w.  jav  a 2 s.co m
    t.join();
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    ScriptEngine engine = new ScriptEngineManager().getEngineByName("nashorn");
    engine.eval("loadWithNewGlobal('res/nashorn4.js')");
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    ScriptEngine engine = new ScriptEngineManager().getEngineByName("nashorn");
    engine.eval("load('res/nashorn3.js')");
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    ScriptEngineManager manager = new ScriptEngineManager();
    ScriptEngine engine = manager.getEngineByName("JavaScript");
    engine.eval("var msg = 'Hello globals'");
    engine.eval("print(this.msg);");
    ScriptContext ctx = new SimpleScriptContext();
    ScriptContext defaultCtx = engine.getContext();
    Bindings engineBindings = defaultCtx.getBindings(ENGINE_SCOPE);
    ctx.setBindings(engineBindings, ENGINE_SCOPE);
    engine.eval("print(this.msg);", ctx);
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    ScriptEngineManager manager = new ScriptEngineManager();

    ScriptEngine engine = manager.getEngineByName("js");

    engine.eval("function add (a, b) {c = a + b; return c; }");
    Invocable jsInvoke = (Invocable) engine;

    Object result1 = jsInvoke.invokeFunction("add", new Object[] { 10, 5 });
    System.out.println(result1);//from www .j  a v  a2  s.c o m

    Adder adder = jsInvoke.getInterface(Adder.class);
    int result2 = adder.add(10, 5);
    System.out.println(result2);
}

From source file:JavaObjectDemo.java

public static void main(String[] args) throws Exception {
    ScriptEngineManager manager = new ScriptEngineManager();
    ScriptEngine jsEngine;
    jsEngine = manager.getEngineByExtension("js");
    jsEngine.eval("importPackage(javax.swing);var optionPane =JOptionPane.showMessageDialog(null, 'Hello!);");
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    String xyz = "3*3+3";
    String kkk = "(100 % 6)* 7";
    ScriptEngineManager manager = new ScriptEngineManager();
    ScriptEngine se = manager.getEngineByName("JavaScript");
    Object result1 = se.eval(xyz);
    Object result2 = se.eval(kkk);
    System.out.println("result1: " + result1);
    System.out.println("result2: " + result2);
}

From source file:Main.java

public static void main(String[] args) throws ScriptException {
    ScriptEngineManager manager = new ScriptEngineManager();
    ScriptEngine rhino = manager.getEngineByName("JavaScript");

    Double result = (Double) rhino.eval("1 + 2");
    Integer i = result.intValue();
    System.out.println(i);//from  ww  w. ja  va2 s  .com
}