How-to articles, tricks, and solutions about EQUALS
Getting an element from a Set
A Set is a collection of elements in which each element can only occur once. A Set does not have a specific order and does not provide a way to access its elements by their position.
How to check if my string is equal to null?
To check if a string is equal to null in Java, you can use the == operator.
What issues should be considered when overriding equals and hashCode in Java?
When overriding the equals() and hashCode() methods in Java, you should consider the following issues:
Why do I need to override the equals and hashCode methods in Java?
The equals() and hashCode() methods are two methods that are defined in the Object class, which is the superclass of all classes in Java.