Java - Medium Articles

Image Processing In Java – Get and Set Pixels

Prerequisite – Image Processing in Java – Read and Write In this set, we will learn about the pixels of images, how we can get… Read More

Image-Processing

Java

Chained Exceptions in Java

Chained Exceptions allows to relate one exception with another exception, i.e one exception describes cause of another exception. For example, consider a situation in which… Read More

Java

Misc

How JVM Works – JVM Architecture?

JVM(Java Virtual Machine) acts as a run-time engine to run Java applications. JVM is the one that actually calls the main method present in a… Read More

Java

Misc

Iterators in Java

A Java Cursor is an Iterator, that is used to iterate or traverse or retrieve a Collection or Stream object’s elements one by one. In… Read More

Java-Collections

Java

transient keyword in Java

transient is a variables modifier used in serialization. At the time of serialization, if we don’t want to save value of a particular variable in… Read More

Java

Lambda Expression in Java

In Java, Lambda expressions basically express instances of functional interfaces (An interface with a single abstract method is called a functional interface). Lambda Expressions in… Read More

Java 8

java-lambda

Java

Functional Interfaces in Java

Java has forever remained an Object-Oriented Programming language. By object-oriented programming language, we can declare that everything present in the Java programming language rotates throughout… Read More

Java

FICO ( Fair Issac and Corporation) | Set 1(On Campus)

On Campus Recruitment only for ” MCA ” There were 3 rounds: Round 1: Written( Offline written test which comprises of 3 modules) Module 1 : Technical… Read More

FICO

Experiences

Interview Experiences

Java

Producer-Consumer solution using threads in Java

In computing, the producer-consumer problem (also known as the bounded-buffer problem) is a classic example of a multi-process synchronization problem. The problem describes two processes,… Read More

Java

Misc

Inter-thread Communication in Java

Prerequisite: Multithreading in Java, Synchronized in Java Inter-thread communication in Java is a mechanism in which a thread is paused running in its critical section… Read More

Java

Misc

Synchronization in Java

Multi-threaded programs may often come to a situation where multiple threads try to access the same resources and finally produce erroneous and unforeseen results. Why… Read More

Java-Multithreading

Java

Fast I/O in Java in Competitive Programming

Using Java in competitive programming is not something many people would suggest just because of its slow input and output, and well indeed it is… Read More

Java-Competitive-Programming

Competitive Programming

DSA

Java

Implementing our Own Hash Table with Separate Chaining in Java

All data structure has their own special characteristics, for example, a BST is used when quick searching of an element (in log(n)) is required. A… Read More

DSA

Hash

Java

volatile Keyword in Java

Using volatile is yet another way (like synchronized, atomic wrapper) of making class thread-safe. Thread-safe means that a method or class instance can be used… Read More

Java

HashSet in Java

Java HashSet class implements the Set interface, backed by a hash table which is actually a HashMap instance. No guarantee is made as to the… Read More

Java - util package

Java-Collections

java-hashset

Java

Quantifiers in Java

Prerequisite: Regular Expressions in Java Quantifiers in Java allow users to specify the number of occurrences to match against. Below are some commonly used quantifiers… Read More

java-regular-expression

Java

Technical Scripter

Regular Expressions in Java

In Java, Regular Expressions or Regex (in short) in Java is an API for defining String patterns that can be used for searching, manipulating, and… Read More

java-regular-expression

Java

Technical Scripter

How to swap or exchange objects in Java?

In order to understand how to swap objects in Java, let us consider an illustration below as follows: Illustration: Let’s say we have a class… Read More

java-basics

Java

Cloning in java

Object cloning means to create an exact copy of the original object. If a class needs to support cloning, it must implement java.lang.Cloneable interface and… Read More

Java

Comparison of Autoboxed Integer objects in Java

When we assign an integer value to an Integer object, the value is autoboxed into an Integer object. For example the statement “Integer x =… Read More

Java