String Comparison Issue in Java

Asked Dec 13 '16 at 10:19

Active Dec 15 '16 at 05:05

Viewed 46 times

techpalle;

public class MyProgram {

    public static void main(String[] args) {

        System.out.println("Tri" + "angle" =="Triangle"); 

    }

}

Tri is stored in string constant pool, angle is also stored in string constant pool and after concatenation is done Triangle will be stored in heap memory.

Right Hand Side Triangle will be stored in string constant pool == compares the address How am I getting true then?

edited Dec 15 '16 at 05:05

asked Dec 13 '16 at 10:19

Sayooj KC

1

First "Tri" + "angle" is determined to be "Triangle". After that the comparison using == is made, yielding true. – Adriaan Koster Dec 13 '16 at 10:21
2

Concatenation of string literals is done at compile time - the compiler is smart enough to create one string `"Triangle"` out of `"Tri" + "angle"`. – Jesper Dec 13 '16 at 10:22
== compares address right? – Sayooj KC Dec 15 '16 at 05:02

String Comparison Issue in Java

0 Answers0