When we create a string using new operator, we place the string in double quotes inside the constructor.. Eg.
String s=new String("literal"); Does JVM creates a new string object for "literal" and pass it to the constructor? i.e, are two objects created one of which is garbage collected. Or, only one object is created which is referenced by s.
The question popped because of the following statement: Jvm creates object for "every double quoted" values in the program.
Does JVM creates a new string object for "literal" and pass it to the constructor?
Essentially yes, although it is the compiler and classloader that are really responsible.
i.e, are two objects created one of which is garbage collected.
Yes, although I'm sure you mean 'collectable' rather than 'collected'.
Or, only one object is created which is referenced by s.
No.
Jvm creates object for "every double quoted" values in the program.
As stated, that is incorrect. Where did you read it? There is pooling to consider. There isn't a 1::1 relationship between string literals and objects.
Found a pretty good explanation here: Link
String str = new String("Cat"); In above statement, either 1 or 2 string will be created.
If there is already a string literal “Cat” in the pool, then only one string “str” will be created in the pool.
If there is no string literal “Cat” in the pool, then it will be first created in the pool and then in the heap space, so total 2 string objects will be created.
