Here is the list of methods available in HashMap class. I have also covered examples using these methods at the end of this post. void clear(): It removes all the key and value pairs from the specified Map. Object clone(): It returns a copy of all the mappings of a map and used for cloning them…
Category: OCP
Different variables in Java.
In this blogpost we will discuss the different types of variables in Java. But before that lets see the naming conventions which are followed/allowed in Java programming language. Variables naming cannot contain white spaces, for example: int num ber = 100; (invalid) Variable name can begin with special characters such as $ and _. As per the java…