Groovy Eval

Groovy

import static java.lang.System.out;
import groovy.util.Eval;

import java.util.Properties;

public class Main {
 public static void main(String[] args) {
  out.println(Eval.me("3 * 5 + 1"));
  out.println(Eval.x(3, "x * 5 + 1"));
  out.println(Eval.xy(3, 5, "x * y + 1"));
  out.println(Eval.xyz(3, 5, 1, "x * y + z"));
  Properties properties = System.getProperties();
//  dot notation (bean.prop)
  out.println(Eval.me("p", properties, "'file.encoding='+p.'file.encoding'"));
//  array subscript (bean[prop])
  out.println(Eval.me("p", properties, "p.keySet().min()+'='+p[p.keySet().min()]")); 
 }
}

/*

16
16
16
16
file.encoding=MS950
awt.toolkit=sun.awt.windows.WToolkit

*/