Core Java Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Core Java Interview Questions

Questions Answers Views Company eMail

. What are the differences between constructor and method of a class in Java?

1 911

How do you use final keywords and final variables in Java?

2 687

In Java, what types of classes perform inheritance?

2 703

What types of inheritance does Java support?

2 705

What is Java exception handling?

1 645

What are the differences between unchecked exception, checked exception, and errors?

2 883

What are the types of loops in Java, and how are they used?

2 649

How do you declare an infinite loop?

2 755

What is the difference between the continue and break statement?

2 719

What is the entry point in Java, and how is it written?

2 729

In Java, what are public static void main string args?

2 719

In Java, what’s the purpose of static methods and static variables?

2 737

How do you use, call, and access a static method in Java?

2 778

How do you use, call, and access a non-static method in Java?

2 712

In Java, what are this() and super(), and where are you required to use them?

2 686

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Un-Answered Questions { Core Java }

Why should I use abstract class?

1024

If goto and const is reserve words than why it is not work in java?

1924

What do you understand by a Static Variable?

1148

Will set allow duplicates in java?

929

is it possible to instantiate the math class?

975

Difference between concurrent hashmap and hashtable and collections

1011

What are the three parts of a lambda expression?

955

What is scanner in java?

915

Why is java called the platform independent programming language?

961

What are byte codes?

1144

What is the difference between normal report & matrix report?

1057

Why is java so important?

1069

Can you sort a list in java?

931

Which data type is class in java?

963

How do I run java on windows?

1100

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