What is String pool in Java? -

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this question has answer here:

i confused stringpool in java. came across while reading string chapter in java. please me understand, in layman terms, stringpool does.

this prints true (even though don't use equals method: correct way compare strings)

    string s = "a" + "bc";     string t = "ab" + "c";     system.out.println(s == t);

when compiler optimizes string literals, sees both s , t have same value , need 1 string object. it's safe because string immutable in java.
result, both s , t point same object , little memory saved.

name 'string pool' comes idea defined string stored in 'pool' , before creating new string object compiler checks if such string defined.


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