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 is System class and its purpose?

2 10580

What enableEvents() method do?

1 5746

What is the purpose of the finally clause?

3 6897

What is the range of the char type?

3 7281

What is the range of the short datatype?

2 6812

What is the relationship between a method?s throws clause and the exceptions that can be thrown during the method?s execution?

2 5789

Relationship between an event-listener interface and an event-adapter class?

1 12691

What is clipping and repainting and what is the relation between them?

1 4704

Explain the relationship between the Canvas and Graphics class?

1 5265

What is the return type of a program?s main() method?

3 10387

What is the smallest package in Java API?

iGate,

5 15516

What is the superclass of exception?

3 9442

What is the use of TL?

2001

What is the use of an interface?

3 7040

What is parameter tag and what is its use?

1 6309

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Un-Answered Questions { Core Java }

What is the difference between the boolean & operator and the && operator in java programming?

1060

What is difference in between java class and bean?

1112

What is jvm? How its run?

1099

How do you bind variables?

1120

Can an integer be a string?

1081

How can we run a java program without making any object?

1061

How do you check if two strings are equal in java?

1029

List some features of the abstract class.

1083

What's the difference between an abstract class and interface in java?

1047

How to retrieve data from database in java using arraylist?

1065

What is java autoboxing?

964

How to implement an arraylist in java?

1178

What is the class in java?

1032

How can you read content from file in java?

1019

What is a void method java?

970

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