what the difference between

String s="q";

and


String s=new String("q");

if you just assign a string literal ["q" is called literal] compiler will check whether are there any String object having the same string pointed by them the i'll give the same reference to the object 's'. That means if there is a line of code like
 before the line
 both the variables 'r' and 's' will point to the same location.
On the other hand if you use the new keyword it'll allocate memory for the string object and give the reference to the String object.

- Rakesh

thanks rajesh . i understood your point

Hi Rakesh

what if the code

String r="q"

is not present before

String s="q"

will memory allocation not happen in this case ?

Rgds
Jo

Hi Jo,
     Here it is following concept of saving memory. When we create a String object, it checks in memory whether it exists or not. If exists, it will not create new object. If it is not exist, it will create new string object.
     So in this case, if there is no statement like String r="q", it will create new object in memory.


Venkat.K