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JavaScriptHello - SJP API Hello Example
How to use the SJP (Scripting for the Java Platform) API to write a simple "Hello World!" example?
✍: FYIcenter
You can follow this tutorial to use the SJP (Scripting for the Java Platform) API to write a simple "Hello World!" example:
1. Create a JavaScript ScriptEngine object with an instance of ScriptEngineManager:
ScriptEngineManager f = new ScriptEngineManager(); ScriptEngine e = f.getEngineByName("JavaScript");
2. Call the eval() method on the ScriptEngine object to run a JavaScript code:
e.eval("print(' Hello world!')");
Here is the entire sample program, JavaScriptHello.java, that shows you how to use the SJP (Scripting for the Java Platform) API:
// Copyright (c) 2017 FYIcenter.com import javax.script.ScriptEngineManager; import javax.script.ScriptEngine; public class JavaScriptHello { public static void main(String[] args) throws Exception { ScriptEngineManager f = new ScriptEngineManager(); ScriptEngine e = f.getEngineByName("JavaScript"); System.out.println("\nFrom JavaScript:"); e.eval("print(' Hello world!')"); } }
Compile and run it:
>\fyicenter\jdk-1.8.0\bin\javac JavaScriptHello.java >\fyicenter\jdk-1.8.0\bin\java JavaScriptHello From JavaScript: Hello world!
⇒ JavaScriptEngineInfo.java - JavaScript Engine Details
⇐ What Is SJP (Scripting for the Java Platform)
2017-08-03, 1247🔥, 0💬
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