Java string literal pool

[Jun Zhuang]

Hi,

I was reading about the Java8 Metaspace the other day, then got into the topic of string pool. I got conflicting information regarding a couple of things, I wonder if I can get a definitive answer from the experts?

#1: Is the string literal/constant pool a heap area that holds actual string literal objects or a place that holds references to string literal objects?
Reference: http://stackoverflow.com/questions/11700320/is-string-literal-pool-a-collection-of-references-to-the-string-object-or-a-col

#2: Is the following statement correct?

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.

>From http://www.journaldev.com/797/what-is-java-string-pool#comment-36152


Apprciate your answers,
Jun

Jun Zhuang
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