NullPointException NullPointException is a RunTimeException. NullPointException is thrown when the value of a reference variable or object is null. How to avoid NullPointException? Before using any object or reference variable, you must check whether the object or reference variable is
Category: Java
How to handle IOException in Java
IOException In Java, IOException is one of the most common Exception when the program operating between input and output.IOException is used for input and output related operations. Sometimes it’s called Input-Output Exception. Whatever the reason for IOException Reading from a
Exception handling in java with examples
Exception Handling in Java is a powerful mechanism. Exception handling is done to handle the run time error of the program and to maintain normal flow. Exception refers to an abnormal event, which creates a kind of intrapt between tasks.
Java Encapsulation
Binding (or wrapping) code and data together into a single unit are known as encapsulation. For example, a capsule is wrapped with different medicines. Java Encapsulation reduces the code redundancy easily. A java class is the example of encapsulation. Java
Java Abstraction
Hiding internal details and showing functionality is known as abstraction. For example phone call, we don’t know the internal processing. The user will have the information on what the object does instead of how it does it. In Java, abstraction
Java Polymorphism
If one task is performed in different ways, it is known as polymorphism. For example: to convince the customer differently, to draw something, for example, shape, triangle, rectangle, etc. In Java, we use method overloading and method overriding to achieve
Java Inheritance
We will one of the most important concept of JAVA OOP is java inheritance. When one object acquires all the properties and behaviors of a parent object, it is known as inheritance. It provides code reusability. We group the “inheritance
Java Objects and Classes
In this article, we will learn about objects and classes with real-life examples. Java objects and classes are the main components of JAVA. Object Everything in Java is associated with classes and objects, along with its attributes and methods. For
Getters and Setters in Java
Hello guys! In this tutorial, we have figure out the getters and setters method and their features in Java. We will learn accessor and mutator in the Java programming language. Getters and Setters in Java Explained Getters and setters are
Fundamentals of object-oriented programming in Java
Today, we will learn the fundamentals of Object Oriented programming programming. First of all, we have to know the meaning of Object and then we go through the others part. so,Java is an object-oriented programming language.It is based on the
Read More Fundamentals of object-oriented programming in Java
