JAVASCRIPT

4.3.2. Evaluating Variables¶

/*After a variable has been created, it may be used later in a program 
anywhere a value may be used. For example, console.log prints a value, 
we can also give console.log a variable.*/

//These two examples have the exact same output.
console.log("Hello, World!");

let message = "Hello, World!";
console.log(message);

4.3.2. Evaluating Variables¶

import javax.script.ScriptEngineManager;
import javax.script.ScriptEngine;
import javax.script.ScriptException;

public class Test {
  public static void main(String[] args) throws ScriptException {
    ScriptEngineManager mgr = new ScriptEngineManager();
    ScriptEngine engine = mgr.getEngineByName("JavaScript");
    String foo = "40+2";
    System.out.println(engine.eval(foo));
    } 
}