Posts by vikrant_tomar

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Using Interface in Java with an Example

By vikrant_tomar

In this Java tutorial, we will learn about Interfaces. We will also learn using interface in java with the help of an example. An interface is a blueprint of a class. Interfaces s.... Read More

Working with HashMap (Insertion, Deletion, Iteration) in Java

By vikrant_tomar

In this Java tutorial, we will learn working with HashMap in Java. A map is an object that stores information as a key- value pair. Given a key, we can find its value. Key and valu.... Read More

Factorial of a large number using BigInteger in Java

By vikrant_tomar

To calculate the factorial of a large number in Java we are going to use BigInteger. For the easy understanding, we have provided an easy example. BigInteger class in Java is used .... Read More

Sorting a list of objects of user-defined class using Comparator interface

By vikrant_tomar

Sorting is vital in every aspect of programming. The java.util.Collections.sort() function can be used to sort the elements of a list of a predefined data type. The Comparator inte.... Read More

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