CODEWITHSUNDEEP
javastring
mansi kbchawla
mansi kbchawla

Reputation: 69

When do some strings are not created via string const pool in java?

I want to clarify a doubt here

when we create a string via new operator 

String s=new String("jk");

jk goes in String constant pool and heap

Now see

String s1=s+"winter"; 
 //case1

or 

String s1="jk"+new String("winter");

Does winter in both case go to String Const pool?

How do i check it?

Upvotes: 0

Views: 50

Answers (2)

TheLostMind
TheLostMind

Reputation: 36304

Yes. In both cases "winter" will go into the String constants pool. The JLS specifies that anything between "" is considered as a compile-time constant and goes into the String constants pool.

Note : new String("winter") --> is redundant and almost always considered evil

Upvotes: 2

Thomas Stets
Thomas Stets

Reputation: 3035

Only String constants like "abc", or expressions that the compiler can evaluate during compile-time, like "abc" + "def", or strings that you call intern() on go into the constant pool.

Strings that result from an expression evaluated during runtime are just regular objects.

Upvotes: 1

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