Will the compiler creates/assigns the memory for String

We are able to create String object in 3 methods

Method 1.By directly Declering String Variable
Ex: String s1="Hai";

Method 2.By Using new operator
Ex: String s1=new String("Hai");

Method 3.By converting the character Array in to String

In 1 interview they asked me what is the difference between Method 1 and method 2

then i said tht compiler will create the String object in Method1
String object will be create at run time by using method2
Now the question is as follows
Will the compiler creates/assigns the memory for String

[B]Question asked by visitor Veerraju[/b]

Hi

The difference between the two is that the first one creates the reference of string class & second creates the object of the string class that acquires some memory & will have the value "Hai"

See, basically, Strings in java are immutable objects, once they are created there value will never change throughout the program.so, when one string is created like String s = new String ("abcd"),
here, s= abcd, as you know,
now , this is stored in the heap.
now , you concat for example with "hij",
String.concat(s,"hij")
then,
in the heap,
there is another string created for hij,
while the "abcd" remains as it is, since, it is immutable.
now, in the memory at run-time, both are concated.
so,
your qestions asked gets satisfied.