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Java The Thing About Strings

Posted by Dervin Buckery
Dervin Buckery
425 Points

Confused with why these does not equal to each other

String firstString = "Dervin"; String differentString = new String("Dervin"); explore("String objects that contain the same characters but point to different objects cannot use double equals", firstString != differentString);

1 Answer

Robert Stefanic
Robert Stefanic
35,170 Points
Robert Stefanic
Robert Stefanic
35,170 Points

It's because == checks whether or not the object references are the same. When comparing strings in Java, you need to use .equals(str) on a string in order to check to see if each of the characters in both of the strings are the same.

milo banks
milo banks
373 Points

If you don't use .equals, you are comparing the hash strings of the objects. Each string has different hashcodes, weather of not they contain the same thing.