identity – Page 6 – Tarik Billa

What is the difference between == and equals() in Java?

September 8, 2022 by Tarik

In general, the answer to your question is “yes”, but… .equals(…) will only compare what it is written to compare, no more, no less. If a class does not override the equals method, then it defaults to the equals(Object o) method of the closest parent class that has overridden this method. If no parent classes … Read more

Why does comparing strings using either ‘==’ or ‘is’ sometimes produce a different result?

August 30, 2022 by Tarik

is is identity testing, == is equality testing. what happens in your code would be emulated in the interpreter like this: >>> a=”pub” >>> b = ”.join([‘p’, ‘u’, ‘b’]) >>> a == b True >>> a is b False so, no wonder they’re not the same, right? In other words: a is b is the … Read more