How can we know that how many string object resides in string litral pools.?

Question

How can we know that how many string object resides in string litral pools.

is there any mechanism or java code available that will give me the number of String object that are curruntly in string pool ???

What do you want to do with this number, anyway? – user2357112 Jun 06 '14 at 05:29 — user2357112, Jun 06 '14 at 05:29

score 4 · Answer 1 · answered Jun 06 '14 at 05:25

4

is there any mechanism or java code available that will give me the number of String object that are curruntly in string pool ???

No, no such mechanism exists in the JDK.

answered Jun 06 '14 at 05:25

Sotirios Delimanolis

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is this an answer or a comment? – Scary Wombat Jun 06 '14 at 05:28
@ScaryWombat This is an answer. – Sotirios Delimanolis Jun 06 '14 at 05:28
@ScaryWombat In this special case, this answer can be considered valid. – Christian Tapia Jun 06 '14 at 05:31
@ScaryWombat: It's the best kind of answer: succinct. – user541686 Jun 06 '14 at 05:49
@Mehrdad I am sure I think of some succinct answer too ;-) – Scary Wombat Jun 06 '14 at 05:50

Nirav Prajapati · Answer 2 · 2014-06-06T05:44:16.923

0

no there is no mechanism exist but if you want to know more about string pool than

http://www.journaldev.com/797/what-is-java-string-pool

edited Jun 06 '14 at 05:44

answered Jun 06 '14 at 05:29

Nirav Prajapati

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Mustafa sabir · Answer 3 · 2014-06-06T06:05:20.603

No, there is no direct mechanism to access the String pool, since its privately maintained by the String class. But we can check and see if the pool contains a particular String object using:-

StringObject.intern(); //Returns a canonical representation for the string object.

Although There might be a workaround for this, I have never tried or used this approach, You can go ahead and investigate a little bit.

This is related to using VisualVM to see runtime memory values,

http://java.dzone.com/articles/visualvm-see-whats-your-heap

http://netbeans.dzone.com/vvm-displaying-java-memory-pool-stats

How can we know that how many string object resides in string litral pools.?

3 Answers3