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 1020

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

2 773

In Java, what types of classes perform inheritance?

2 843

What types of inheritance does Java support?

2 801

What is Java exception handling?

1 743

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

2 996

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

2 767

How do you declare an infinite loop?

2 877

What is the difference between the continue and break statement?

2 812

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

2 849

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

2 836

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

2 822

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

2 862

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

2 799

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

2 787

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Un-Answered Questions { Core Java }

Write code to implement bubble sort in java?

998

What is array initialization in java?

1100

What is a map in java?

988

Can you pass by reference in java?

978

What does the “static” keyword mean?

1103

How do you print array in java?

992

What is the generic function?

986

Why is sizeof not a function?

1002

What is visibility mode?

969

What is the multi-catch block in java?

1040

Explain about the dynamic behavior of core java?

1138

What is the common usage of serialization?

1147

What is an object class?

1026

Can Exception handling we can handle multiple catch blocks?

1041

What is a numeric digit?

1086

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