what is meant by string pooling?
- 12 Answers
- 36263 Views
- Oracle, Polaris, Tribal Fusion, Wipro, I also Faced
- E-Mail Answers
Answer Posted / birendra kumar
String constant pool is part of the heap memory. which is
manage the memory efficient by the JVM.
if you create String literal like..
//suppose pool is empty..
// str(is reference variable) and abc(is String object)
String str="abc";
/*Creating on String object and one reference variable.
so abc is stored in pood and str is refered it. */
//if you created another String literal with same content like..
String str1="abc";
/* it is only creating reference variable which is point
same String object "abc". because of JVM is checking first
if any content with same string object in the pool just it
is make the reference not created new String object*/
if you creating String Object using new keyword like..
String str2=new String("abc");
/* creating two object and one reference variable*/
because here we used new keyword and it is creating normal
object in the heap(non pool)memory.where 1st object is
stored and str is refered to it. and 2nd object is stored as
it is in string pool.
that is reasion in java if you match with str with str2
using (==) operator it will give you false result because of
(==) operator is match basis of reference variable which is
pointing same object if you use equals method then you get
true.basis of content of the reference variable in .
| Is This Answer Correct ? | 15 Yes | 0 No |
Post New Answer View All Answers
What is the difference between hashmap and hashtable in java?
What are the differences between heap and stack memory in java?
Does .length start 0 java?
what is meant wrapper classes?
Explain inheritance in java?
When the constructor of a class is invoked?
What is the integer of 16?
Explain the difference between call by refrence and call by value?
What does string intern() method do?
What is join () in java?
What is return in java?
define polymorphism in java
What does the three dot emoji mean?
If a method is declared as protected, where may the method be accessed in java programming?
How do you use find and replace?
