Problem_D2

gistfile1.java

package main;

import java.io.File;
import java.util.Scanner;

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

public class Exp {

	public static void main(String[] args) throws Throwable {
		File file = new File("txt");
		Scanner sc = new Scanner(file);
		ScriptEngineManager mpr = new ScriptEngineManager(); //ท่าไม้ตาย
		ScriptEngine scp = mpr.getEngineByName("JavaScript");
		int count=1;
		while (sc.hasNext()) {
			String ExR = sc.nextLine();
			if(ExR.contains("E")) break;
			System.out.println("case "+count++ +": "+scp.eval(ExR));
		}
	}
}