27. Program to swap number/char/double in java

import java.util.*;

class swap

{

            int a,b,c;

            double x,y,z;

            char r,s,t;

            void find(int i,int j)

            {

                        a=i;

                        b=j;

                        c=a;

                        a=b;

                        b=c;

                        System.out.println("Integer swap: a="+a+","+"b="+b);

            }

            void find(double p,double q)

            {

                        x=p;

                        y=q;

                        z=x;

                        x=y;

                        y=z;

                        System.out.println("Double swap: x="+x+","+"y="+y);

            }

            void find(char m,char n)

            {

                        r=m;

                        s=n;

                        t=r;

                        r=s;

                        s=t;

                        System.out.println("Character swap: r="+r+","+"s="+s);

            }

}

class swap2

{

            public static void main(String args[])

            {

                        Scanner sc=new Scanner(System.in);

                        swap ob=new swap();

                        System.out.println("Enter integer:");

                        int i=sc.nextInt();

                        int j=sc.nextInt();

                        System.out.println("Enter float:");

                        double p=sc.nextDouble();

                        double q=sc.nextDouble();

                        ob.find(i,j);

                        ob.find(p,q);

                        ob.find('m','n');

                       

            }

}