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What do you understand by classes in java?

By Vishal Gupta on 02 Jul 22 | Filed under: JAVA Interview Questions
In Java, a class is a user-defined data type from which objects are created. It can also be called as a blueprint or prototype. A class is a collection of various methods and variables which represent a set of properties that are common to all the objects of one type. A class includes components suc  ......

What do you mean by an object in java?

By Vishal Gupta on 02 Jul 22 | Filed under: JAVA Interview Questions
An object is a basic entity in an object-oriented programming language that represents the real-life entities. Many objects are created by a java program that interacts with the invoking methods. The state of an object is represented by its attributes and reflects its properties. The behavior of an   ......

Compare java and python.

By Vishal Gupta on 02 Jul 22 | Filed under: JAVA Interview Questions
Java and Python, both the languages hold an important place in today’s IT industry. But in some factors, one is better than the other. Such factors are:Java is easy to use, whereas Python is very good in this case.The speed of coding in Java is average, whereas in Python it is excellent.In Java, t  ......

Outline the major features of Java.

By Vishal Gupta on 02 Jul 22 | Filed under: JAVA Interview Questions
The major features of Java are listed below: –Object-oriented: – Java language is based on object-oriented programming. In this, the class and the methods describe the state and behavior of an object. The programming is done by relating a problem with the real world object.Portable: – the conv  ......

Looping in JAVA and Types of Loops in JAVA

By Vishal Gupta on 02 Jul 22 | Filed under: JAVA Interview Questions
If we want to execute a statement or a block of statements repeatedly in java, then loops are used. And such a process is known as looping. There are basically 3 types of looping. They are: –"For loop": – for executing a statement or a set of statements for a given number of times, for loops are  ......

What are the various access specifiers in Java?

By Vishal Gupta on 02 Jul 22 | Filed under: JAVA Interview Questions
Access specifiers in java are the keywords which define the access scope of the function. It can be used before a class or a method. There are basically 4 types of access specifiers in java: –Public: – class, methods, and fields are accessible from anywhere.Protected: – methods and fields are   ......

What is the difference between JDK, JRE, and JVM?

By Vishal Gupta on 02 Jul 22 | Filed under: JAVA Interview Questions
It is important to understand the difference between JDK, JRE, and JVM in Java.JVM (Java Virtual Machine):  Java virtual machine is actually an abstract machine which provides a runtime environment in which the java bytecode gets executed. A JVM performs some main tasks such as- loading, verify  ......

What is the need of the JAVA?

By Vishal Gupta on 02 Jul 22 | Filed under: JAVA Interview Questions
The need of Java is that it enforces an object-oriented programming model and can be used to create complete applications that can run on a single computer or be distributed across servers and clients in a network thus it can easily build mobile applications or run on desktop applications that use d