This is a question that I got in an interview.
I\'ve two strings defined as
String s1=\"Java\";
String s2=\"Java\";
My question i
String s1="Java";
String s2="Java";
My question is whether these two references point to the same memory location
Dumb citing §3.10.5 of Java Language Specification:
A string literal is a reference to an instance of class String (§4.3.1, §4.3.3).
Moreover, a string literal always refers to the same instance of class String. This is because string literals - or, more generally, strings that are the values of constant expressions (§15.28) - are "interned" so as to share unique instances, using the method String.intern.
And read the comments to code example there:
This example illustrates six points:
Literal strings within the same class (§8) in the same package (§7) represent references to the same String object (§4.3.1).
Literal strings within different classes in the same package represent references to the same String object.
Literal strings within different classes in different packages likewise represent references to the same String object.
Strings computed by constant expressions (§15.28) are computed at compile time and then treated as if they were literals.
Strings computed by concatenation at run time are newly created and therefore distinct.
The result of explicitly interning a computed string is the same string as any pre-existing literal string with the same contents.