Author: Arpit Mandliya

If two or more methods have same name , but different argument then it is called method overloading. Why you would do that (same name but different argument)? Lets take an example. You want to print salary of employee and sometimes company gives bonus to their employee and sometimes it don’t.So If company don’t give […]

In this post, we will see how you can use comparator to sort list of objects in java. Comparator: When you want to sort the list of objects of a class,you can use Comparator interface. You don’t need to implement Comparator on the class whose objects need to be sorted. You can create a separate […]

If subclass is having same method as base class then it is known as method overriding Or in another words, If subclass provides specific implementation to any method which is present in its one of parents classes then it is known as method overriding Lets start with a real time example: In a small organization,There […]

This is 3rd part of java Serialization tutorial Java Serialization Tutorial: Serialization in java Java Serialization interview questions and answers serialversionuid in java serializationexternalizable in java Transient keyword in java Difference between Serializable and Externalizable in Java Before understanding Externalizable interface, you need to have idea about Serialization.You can read more about Serialization at Serialization […]

Java HashMap: HashMap in java How HashMap works in java hash and indexfor method in HashMap hashcode and equals method in java How to sort HashMap by keys and values Difference between HashMap and HashSet Difference between HashMap and Hashtable How to iterate over HashMap Target AudienceThis post is for the people who already have […]

In this post ,we will try to understand hashcode() and equals() method in java. Java HashMap: HashMap in java How HashMap works in java hash and indexfor method in HashMap hashcode and equals method in java How to sort HashMap by keys and values Difference between HashMap and HashSet Difference between HashMap and Hashtable How […]

In this post, we will see about static keyword in java.So static keyword can be associated with: Variable Method Block Nested class Lets go through each one by one. Static variable: If any instance variable is declared as static.It is known as static variable. [crayon-6780de615a7fe636416380/] Some points about static variables are: Static variable belongs to […]

In this post,we will see how can we read and write JSON using GSON. Java JSON Tutorial Content: JSON Introduction JSON.simple example-read and write JSON GSON example-read and write JSON Jackson example – read and write JSON Jackson Streaming API – read and write JSON reading and writing JSON using json-simple.We will use another way(i.e. […]

In this post,we will see how can we read and write JSON using json.simple. Java JSON Tutorial Content: JSON Introduction JSON.simple example-read and write JSON GSON example-read and write JSON Jackson example – read and write JSON Jackson Streaming API – read and write JSON JSON.simple, is a simple Java library for JSON processing, read […]