For example, to add elements to the ArrayList , use the add() method:
Read moreHow many types of package are there?
There are two types of packages : User-defined and built-in packages. A package is Java’s style of bundling classes together. A package is a collection of related classes and interfaces. A package does not mean only predefined classes; a package may contain user defined classes also.
Read moreHow many packages does Java have?
We have two types of packages in Java: built-in packages and the packages we can create (also known as user defined package). In this guide we will learn what are packages, what are user-defined packages in java and how to use them. → and Scanner is a class which is present in the sub package util.
Read moreWhat are the types of packages in Java?
Package in java can be categorized in two form, built-in package and user-defined package. There are many built-in packages such as java, lang, awt, javax, swing, net, io, util, sql etc.
Read moreIs it mandatory to import Java Lang package every time?
No, java. lang package is a default package in Java therefore, there is no need to import it explicitly . i.e. without importing you can access the classes of this package.
Read moreIs it mandatory to import Java Lang package every time?
No, java. lang package is a default package in Java therefore, there is no need to import it explicitly . i.e. without importing you can access the classes of this package.
Read moreWhich package is automatically imported by the Java system?
java. lang package is automatically imported.
Read more