Answer Posted / rv.nandakishore

I think u know... String is not a data type.. it is a
class...right..

By default the String class is a immutable class. That means
once we instantiate the object or assigning the value to
String is immutable. Once we can assign / instantiate the
String class we can't change in the future....


class StringDemo
{
public static void main(String[] args)
{
String s1="Nanda";
String s2="Kishore";
String s3=new String("Nanda Kishore");
System.out.println(s1);
System.out.println(s2);
System.out.println(s3);
}
}



U try any changes anything and print s1,s2 & s3.... If
changes then it is not immutable. If not it is immutable.

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