//TestStuff20170119.java

import java.lang.System;

public class TestStuff20170119
{
    static private int n;
    static private String s;
    public static void main(String[] args)
    {
        System.out.println(n);
        System.out.println(s);

        //Before Java 5 we had to do this ...
        Integer k = new Integer(6);
        System.out.println(k.intValue());
        //Java 5 gave us "boxing" and "unboxing" so we can now do this ...
        Integer i = 6;         //boxing
        System.out.println(i); //unboxing

        System.out.println(Integer.MAX_VALUE);

        System.out.println(2 * Integer.parseInt("123"));
    }
}