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

Core Java Interview Questions

Questions Answers Views Company eMail

How do you use parseint in java?

995

What is nextint java?

1084

Why scanner is used in java?

1095

What are singleton services?

929

What is anti pattern in programming?

979

What is considered an anti pattern?

953

Why should we use singleton pattern instead of static class?

949

What is singleton math?

1162

What is meant by singleton class?

1050

When would you use a static class?

999

Why can't we use static class instead of singleton?

964

What is the difference between static class and normal class?

1055

Why is singleton instance static?

1018

How can we break singleton in java?

986

Should database connections be singleton?

979

Post New Core Java Questions

Un-Answered Questions { Core Java }

What is difference between stringbuffer and string?

980

What is lambda programming?

1035

Why set do not allow duplicates in java?

1122

How many decimal places is a double?

1004

Can we extend singleton class?

968

Can an abstract class be a final class?

1018

Which types of exceptions are caught at compile time?

1049

What is the role of garbage collector in java?

983

What is the public field modifier?

1046

Does java map allow duplicates?

914

Why pass by reference is not possible in java?

1061

What are the types of web technologies?

1059

What is the public method modifier?

1035

What is static keyword?

1173

What is a linkedhashmap java?

1019

For More Un-Answered { Core Java } Questions Click Here