What is the output for the below piece of Code? #1

Question :

public class StringTest {

 

    public static void main(String args[])

    {

        String s = "sachin";

        s.concat("tendulkar");

        System.out.println(s);

    }

}

Output:

sachin

Because String is immutable in Java.

Question :

public class StringTest {

  

    public static void main(String args[])

    {

        String s = "sachin";

        s=s.concat("tendulkar");

        System.out.println(s);

    }

}

Output:

sachintendulkar

Here a new string "sachintendulkar" is created and 's' is made as a reference to this new string.
String object "sachin" still exist in the string constant pool.