Lost String Object

Question

When we initialize a string by assigning it some value and then later when we try to manipulate the same string by concatenating or replacing we say that the new string is assigned to a newly created string object by the JVM but since we did not create a reference, it is lost. My question is, does garbage collector takes care of the lost objects? Or something else happens behind the scene.
For example-
String str = "hello";
str.concat("world");
What happens to the lost object which contains hello world.

Answer 1

"Hello world" also exist in string pool until the garbage collection takes place.. i think.

Answer 2

Yes.
Garbage collection is takes place when no more variables point to that string, it is deallocated and eventually deleted from memory to free up space. and its automatic..

Answer 3

Hope this helps:
https://stackoverflow.com/questions/23977883/where-does-return-value-go-in-java-if-no-variable-assigned-to-accept-it

Answer 4

Jaya krishna
Denise Roßberg
Thanks for helping.

Answer 5

Jaya krishna So garbage collector clears that memory space?

Answer 6

hhj