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Category: Core Java Interview Questions

List of Interview Questions on Java for freshers and experienced candidates asked in technical job interviews in IT Industries. This list includes interview questions asked to freshers, 2,3 and 5 years etc. experience professionals | Only Real.

This section contains technical java interview questions and answers for freshers and experienced on java Polymorphims, Java OOPs concept Inheritance, Interface, abstract class, abstraction and encapsulation, classes and objects etc. with impressive answers and explanation. In fact, interview question on many topics I have provided that you should read or brush up that help crack java technical java interviews quickly.

Core Java Interview Questions

What is Constructor overloading in java? explain with example

August 18, 2024January 29, 2023 rsingh

Constructor overloading in Java is similar to method overloading. When we create more than one constructors in a class with different number of parameters and

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Core Java Interview Questions

What is order of execution of constructors in Java inheritance?

August 18, 2024January 29, 2023 rsingh

Answer includes order of execution of constructors in Java inheritance hierarchy when we create child class object with java program single inheritance example and multilevel

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Core Java Interview Questions

How multiple inheritance in Java is achieved?

August 18, 2024January 29, 2023 rsingh

Multiple inheritance in Java programming is achieved or implemented using interfaces. Java does not support multiple inheritance using classes.In simple term, a class can inherit

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Core Java Interview Questions

What is difference between constructor and method in Java? Explain with code example

August 18, 2024May 11, 2017 rsingh

Answer of what is difference between constructor and method in JAVA programming includes differences with code example. Interview question: Explain difference between constructor and method

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Core Java Interview Questions

Why Java main method is static? – Best Explanation

August 18, 2024November 8, 2016 rsingh

Why Java main method is static and public is a frequently asked interview question generally asked to freshers candidate. To answer why java main method

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Core Java Interview Questions

Explain Java static variable with simple program example

August 18, 2024January 29, 2023 rsingh

Answer:  Java static variable is a variable that is preceded by static keyword and is shared by all the objects of a class. Declaration of

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Core Java Interview Questions

What is static method in Java Programming?

August 18, 2024January 29, 2023 rsingh

Answer: Static method in Java programming is a method of a class that is preceded by static keyword. For example, static method is declared as

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Core Java Interview Questions

What are ways to Prevent Inheritance in Java Programming?

August 18, 2024December 12, 2015 rsingh

There are 2 ways to stop or prevent inheritance in Java programming. By using final keyword with a class or by using a private constructor

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Core Java Interview Questions

When to Use StringBuffer and StringBuilder class in Java Programming

August 18, 2024July 4, 2015 rsingh

We should use StringBuffer for multi-threaded java program or else Stringbuilder class. The difference between StringBuffer and StringBuilder class in java is that StringBuffer is

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Core Java Interview Questions

What is literals in java Programming? Explain with Example

August 18, 2024December 27, 2014 rsingh

Literals in Java programming is a constant value which is compatible to a data type, programmers assign to a variable that compiler understand. It is

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