Program on operations of the String class

import java.util.Scanner;

public class StringOps

{

public static void main(String args[])

{

Scanner s=new Scanner(System.in);

String a=new String();

String b=new String();

System.out.println("Enter two strings:");

a=s.nextLine();

b=s.nextLine();

String c=new String();

c=a.concat(b);

System.out.println("Concatenated string is: "+c);

if(a.compareToIgnoreCase(b)>0)

System.out.println(a+ " is bigger than "+b);

else

System.out.println(b+ " is bigger than "+a);

System.out.println(a + " in uppercase is "+a.toUpperCase());

System.out.println(b + " in uppercase is "+b.toUpperCase());

if(a.equals(b)==true)

System.out.println("Using equals function: True");

else

System.out.println("Using equals function: False");

if(a==b)

System.out.println("Normal '==' condition: True");

else

System.out.println("Normal '==' condition: False");

}

}

OUTPUT:

C:\Program Files\Java\jdk1.7.0\bin>java StringOps

Enter two strings:

foo

foo

Concatenated string is: foofoo

foo is bigger than foo

foo in uppercase is FOO

foo in uppercase is FOO

Using equals function: True

Normal '==' condition: False