Interested to Buy Any Domain ? << Click Here >> for more details...
difference between String a; and String a=new String();?
y do v need to assign memory to the variable?
- 2 Answers
- 5965 Views
- I also Faced
- E-Mail Answers
Answer Posted / saroj kumar biswal
String a;
jvm creates a reference & allocates memory for storing hashcode value
String a=new String();
jvm creates a object to String class in heap memory & returns the unique hexadecimal equivalent of that memory location which is stored in reference variable a as hashcode.
We dont need to assign memory to variable.because in java memory management is taken care by jvm automatically.Programmer need not worried about memory allocation issue.But yes jvm allocates memory for variable to store hashcode, if it is a referenced variable.If it is primitive type variable then jvm will not allocate extra memory for that variable.Because primitive types stored in object & there is memory allocated for object by jvm.
| Is This Answer Correct ? | 5 Yes | 0 No |
Post New Answer View All Answers
What does jenkins do?
How does arraylist size increase in java?
List the different types of classloaders in java.
How the interruptible method gets implemented?
Can we override constructors?
How do you reverse a word in java?
What is the concept of multithreading?
Differece between class and generic class?
What is illegal identifier in java?
What are the java ide’s?
What is the program development process?
What are inbuilt functions?
What is difference between final and finally in java?
what is the purpose of the wait(), notify(), and notifyall() methods? : Java thread
What is the difference between array and array list in java?
