Source Code : Run JavaScript and get the result by using Java

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Run JavaScript and get the result by using Java

     

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

public class RunJavaScript {
  public static void main(String args[]) {
    ScriptEngineManager manager = new ScriptEngineManager();
    ScriptEngine engine = manager.getEngineByName("javascript");
    try {
      Double hour = (Double) engine.eval("var date = new Date();" + "date.getHours();");
      String msg;
      if (hour < 10) {
        msg = "Good morning";
      } else if (hour < 16) {
        msg = "Good afternoon";
      } else if (hour < 20) {
        msg = "Good evening";
      } else {
        msg = "Good night";
      }
      System.out.println(hour);
      System.out.println(msg);
    } catch (ScriptException e) {
      System.err.println(e);
    }
  }
}
/*10.0
Good afternoon
*/

          
    
    
    
  

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