Answer Posted / gayitri91

import java.io.*;

class Swap_2_Strings
{
String s1,s2;
DataInputStream dis=new DataInputStream(System.in);


Swap_2_Strings()
{
try
{
int n,m;
System.out.println("Enter 2 strings");
s1=dis.readLine();
s2=dis.readLine();
n=s1.length();
m=s2.length();
s1=s1+s2;
s2=s1.substring(0,n);

s1=s1.substring(n,n+m);

System.out.println("s1="+s1+"\n s2="+s2);

}
catch(IOException x)
{
System.out.println(x);
}
}
public static void main(String arg[])
{
Swap_2_Strings s=new Swap_2_Strings();
}
}

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