String s = “a” + “b” + “c”; Can anyone tell for this statement how many object will be created [duplicate]

Answer 1

There will be one string object in the string pool. "a" + "b" + "c" is resolved to "abc" at compile time (see JLS §15.28), so what you have is equivalent to

String s = "abc";

There are no StringBuilders involved here, contrary to what the accepted answer of the duplicate question asserts. You can even see this in the bytecode:

LDC "abc"
ASTORE 1

From the JLS link above:

Compile-time constant expressions of type String are always "interned" so as to share unique instances, using the method String.intern.