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Java Differences

Difference Between method overloading and method overriding

When a class has two or more methods with the same name but different parameters, the call to the appropriate method is made based on the parameters passed (or respective method body will be bonded with the calling line dynamically). Method overloading is the term for this mechanism.
In method overriding, methods with the same name and parameters are present in both the superclass and the subclass. Based on the object used to call the method, JVM invokes the appropriate procedure. The return types for overriding should also be the same.

Definition,
Comparison Chart
Key Differences

Aug 24, 2023 — 5 min read

Final vs Finally vs Finalize

What is Final-vs-Finally-vs-Finalize ?

Final,Finally,Finalize is a Keywords that are used in Java. A Final keyword is a modifier for access. A method in an object class is called finalize. The "finally" block is executed whenever an exception is thrown and no catch block can be found to handle it. In this article, we will be talking about Final vs Finally vs Finalize.

Definition,
Comparison Chart
Key Differences

May 10, 2023 — 5 min read

StringBuffer vs StringBuilder

Difference betweeen StringBuffer and StringBuilder & Advantages Explained.

The functions of the StringBuilder and StringBuffer classes are very similar because both create mutable sequences of characters as an alternative to the String Class. So, let's start by understanding StringBuilder and StringBuffer.

Definition,
Comparison Chart
Key Differences

Mar 29, 2023 — 5 min read

Java Oops Concept

Java OOPs

Java OOPs Basic Concepts

Object-Oriented Programming, or OOPs, refers to programming languages that employ objects as a key source for implementing what is to happen in the code. The user or viewer see objects as they execute the tasks assigned to them. They apply real-world principles such as inheritance, encapsulation, polymorphism, and other relevant concepts. in programming is the goal of object-oriented programming.

Java OOPs Concepts
OOPS concepts
Pillars of OOPs
Difference Between Object-Oriented and Procedure Programming languages

Mar 29, 2023 — 5 min read

Java Constructor

Constructors in Java

The term "Java constructors" refers to the process of constructing or building elements within our programs. In Java, a constructor is a special method utilized for initializing objects. When we instantiate a class object, the constructor is called that allow us to set initial values for the object's attributes. So in this article, we will be talking about Java Constructors.

Constructors in Java
Types of Constructor
Constructor Overloading in Java
Java Copy Constructor
Difference between Constructor and Method

May 10, 2023 — 4 min read

Java Method

Method in Java

Java methods are a set of instructions designed to execute a particular task efficiently. method offer a easy way to modify code as needed. Within this segment, we will deep dive into the concept of Java methods, explore various types of methods, understand their utilization, and the process of invoking them in Java.So let's start this journey

Method in Java
Types of Method
Method Overloading in Java
Static Method
Abstract Method

Aug 24, 2023 — 5 min read

Java OOps Pillars

Java Inheritance

Inheritance is a critical component of OOP (Object-Oriented Programming). It is the mechanism in Java that allows one class to inherit the characteristics (fields and methods) of another class. In Java, inheritance refers to the process of developing new classes from existing ones. A class can use the fields and methods of another class from which it has inherited.. You can also add additional fields and methods to your current class.

What is inheritance in Java
Single Inheritance
Multilevel Inheritance
Hierarchical Inheritance
Multiple Inheritance

Mar 29, 2023 — 5 min read

Java Abstraction

Data Abstraction is the property that allows only the most important details to be displayed to the user. The user is not shown the trivial or non-essential units. For example, a car is regarded as a whole rather than its individual components.
For example, sending SMS, where you type the message and send it. You are not aware of the internal operations involved in delivery of message .

Abstraction in Java
Advantages of Abstraction
Abstract classes
Abstract Method in Java
Different scenarios of Abstract classes
Difference Between Encapsulation and Data Abstraction

Aug 24, 2023 — 5 min read

Java Encapsulation

Encapsulation in Java

Encapsulation is defined as the collection of data into a single entity. It is the mechanism that connects the data the code manipulates and the code itself. Encapsulation can also be viewed as a barrier that prevents code from the outside of the barrier from accessing the data. So in this article, we will be talking about Java Encapsulation .

Encapsulation in Java
Advantages of Encapsulation
Read Only class in Java
Write Only class in Java
Encapsulation example

May 10, 2023 — 4 min read

Java Hybrid Inheritance

Hybrid (mixture) generally refers to something that is made up of multiple elements. In Java, a hybrid inheritance is created by combining two or more different inheritance types. Utilizing hybrid inheritance primarily serves to modularize the code into clear classes. It also offers the ability to reuse code. So let's continue the reading this article

What is Hybrid Inheritance in Java
Single-and-Multiple-Inheritance
Hierarchical and Single Inheritance
Multilevel and Hierarchical Inheritance
Multiple and Multilevel Inheritance

Mar 29, 2023 — 5 min read

Java Interface

An interface is a mechanism for achieving 100% abstraction in Java. Only abstract methods, not method bodies, are not allowed in the Java interface it means only method signature are devlared, no body. It is used in Java to provide abstraction and multiple inheritance. Java Interface represents the IS-A connection. So in this article, we will be talking about Java Interface .

Interface in Java
Uses of Interface
How to declare an interface
Java multiple inheritance with interface
JDK 8: Static Method in Interface
JDK 8: Default Method in Interface
Marker or Tagged Interface
Difference Between Class and Interface

Aug 24, 2023 — 5 min read

Java Package

A package in Java serves as a holding area for a group of classes, subpackages, and interfaces. Packages are used to avoid name conflicts. So in this article, we will be talking about Java Packages .

Packages in Java
Advantages of Packages
Different ways to access the package from outside the package
Using Static Import
Different ways to load the class files or jar files

May 10, 2023 — 4 min read

Java Polymorphism

polymorphism in Java allows us to perform the same action in a different ways. Polymorphism in Java refers to any Java object that can pass more than one IS-A test. As a result, all Java objects are polymorphic because they passed the IS-A test for their own type and the class Object. So, let's start by understanding Java Polymorphism.

What is Polymorphism in Java
What is Method Overloading
What is Method Overriding
What is Compile-time Polymorphism
What is Runtime Polymorphism in Java?

Mar 29, 2023 — 5 min read

Runtime polymorphism

Runtime polymorphism, also known as Dynamic Method Dispatch, is the process through which a call to an overridden method is resolved at runtime rather than compile-time. The method includes using a superclass's reference variable to invoke an overridden method.The method to be called will be determined by the object to which the reference variable refers.

Runtime polymorphism in Java
Rules for Run Time Polymorphism
Upcasting in java
Example of Java Run-Time Polymorphism

Aug 24, 2023 — 5 min read

Java Final Keyword

Final Keyword in Java

The "final" keyword is a modifier used in programming to indicate that something cannot be changed or modified. It can be applied to classes, variables and methods.When final keyword is added to a class, it means that the class cannot be extended or subclassed. In other words, we can say cannot create a new class that inherits from a final class.The value of variable can't be changed if a variable is declared as final.So in this article, we will be talking about Java Final Keyword.

Final Keyword in Java
How to initialize a final Variable
Use of the final keyword with variables
Use of the final keyword with methods
Use of the final keyword with classes
Questions related to the Final keyword

May 10, 2023 — 4 min read

Java Keywords

Static Keyword

Java Static Keyword

The static keyword in Java primarily functions as a tool for memory management. In Java, the static keyword enables the sharing of variables or methods across multiple instances of a class. Users can apply the static keyword to variables, methods, blocks, and nested classes. Static keyword belongs to the class itself rather than an object of the class. When a variable or method needs to apply to every instance of a class as a constant, the static keyword is employed.

Java static keyword
Java static Variable
Java static Method
Java static Block
Java static Classes

Mar 29, 2023 — 5 min read

this keyword

Java this Keyword

The Java this keyword is a reference variable that refers to the current object within a non-static method or constructor. It is primarily used to eliminate ambiguity between instance variables and method parameters with the same name. Using the "this" keyword in Java allows for explicit reference to the instance variables of the current object. It proves particularly valuable in situations where distinction between local variables and instance variables is necessary, or when passing the current object as a parameter to another method or constructor is desired.

‘this’ keyword can be used to refer to current class instance variables
‘this’ keyword can be used to invoke the current class constructor
‘this’ keyword can be used to return the current class instance
‘this’ keyword can be used as a method parameter
‘this’ keyword can be used as an argument in the constructor call
‘this’ keyword can be used to invoke the current class method

Aug 24, 2023 — 5 min read

Java Super Keyword

Super Keyword in Java

In the Java programming language, the keyword "super" is utilized as a reference variable to refer the immediate parent class of an object. When you create a subclass instance, an implicit instance of the parent class is also created and is referred to by the super reference variable. With the concept of Inheritance, the keyword "super" entered the picture. So in this article, we will be talking about Java "super" Keyword.

Super Keyword in Java
Use of super keyword with variables
Use of super keyword with methods
Use of super keyword with constructors

May 10, 2023 — 4 min read

Java 8 Features

Java 8

Java 8 Features & Advantages Explained.

Java 8 is a version of the Java programming language released by Oracle Corporation in March 2014. It introduced several new features and enhancements to the language, including lambdas, functional interfaces, streams, and default methods in interfaces

Aug 24, 2023 — 5 min read

Java Lambda Expressions

What is Java Lambda Expressions ?

Lambda expressions are introduced in java8, It offer a way to create anonymous functions. Essentially, they allow functions to be treated as if they were regular variables in Java. This implies that it can be used as variables, returned as values from other functions, and passed as arguments to other functions. In this article, we will be talking about Java Lambda Expressions.

Java Lambda Expressions
Types of Lambda expressions
Problem Without Lambda Expression
Lambda expressions of Foreach Loop

May 10, 2023 — 4 min read

Java Method References

Java Method References.

Java Method References provide a way to refer to a method as a function value instead of using a lambda expression.
There are four types of method references in Java:
1.Reference to a static method
2.Reference to an instance method of an object of a particular type
3.Reference to an instance method of an existing object
4.Reference to a constructor So, let's start by understanding Java Method References.

Mar 29, 2023 — 5 min read

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