encap

import java.util.Scanner;
public class encap{
    public static void main(String Args[])
    {
        encap_demo obj = new encap_demo();
        System.out.println("public variables " + obj.var3 + " " +" "+ obj.var4);
        System.out.println("private variables " + obj.get_var1() + " " +" "+ obj.get_var2());
        obj.set_var1(100);
        obj.set_var2(200);
        obj.var3 = 300;
        obj.var4 = 400;
        System.out.println("\npublic variables after change " + obj.var3 + " " +" "+ obj.var4);
        System.out.println("private variables after change " + obj.get_var1() + " " +" "+ obj.get_var2());
    }
}

class encap_demo {
    private int var1, var2;
    public int var3, var4;

    encap_demo()
    {
        System.out.println("Constructor called");
        var1 = 1;
        var2 = 2;
        var3 = 3;
        var4 = 4;
    }

    int get_var1()
    {
        return var1;
    }

    int get_var2()
    {
        return var2;
    }

    void set_var1(int v)
    {
        var1 = v;
    }

    void set_var2(int v)
    {
        var2 = v;
    }

}