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

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Java Related Interview Questions

Questions Answers Views Company eMail

How can an exception be thrown manually by a programmer?

1003

How we can execute any code even before main method?

1141

Can we call a non-static method from inside a static method?

998

Why strings in java are called as immutable?

992

What is the difference between an inner class and a sub-class?

1019

Is it compulsory for a try block to be followed by a catch block in java for exception handling?

1014

How can we use primitive data types as objects?

961

Can variables be used in java without initialization?

1085

What is an infinite loop?

2 1256

What is an infinite loop? How infinite loop is declared?

1111

Can we use a default constructor of a class even if an explicit constructor is defined?

1106

What's the purpose of static methods and static variables?

1100

What is the difference between comparison done by equals method and == operator?

1026

When the constructor of a class is invoked?

1034

What is ternary operator? Give an example.

1082

Un-Answered Questions { Java Related }

What are the sequence of steps to write pub or sub model kind of application?

2519

Do I need to install jre if I have jdk?

892

What is mnemonic code?

1017

What is the use of dispatcher servlet?

472

Is java swing still used?

997

Can a variable be local and static at the same time?

1005

What are the measures to connect to the db using jdbc?

1041

Write an algorithm program in java for the following question.. 1) S is a set of integers.X is an integer obtained by sum of two digits in S. Write logic for whether or not the X is from the S. The time of algorithm should not exceed o(n logn).

2147

Explain how to make updates to the updatable resultsets.

924

What is Custom Type Converter in Struts2?

1100

What is spring jdbc?

396

What is in hql?

439

what is meant by HQL?

1071

What is stateless object in java?

971

What is the difference between swing and awt?

973

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