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 qualitative variable?

926

How do you find the independent variable?

1049

What are the 6 functions?

969

What are the advantages of user defined functions?

997

Where are register variables stored?

1012

What is executor memory?

942

What is off heap memory?

1005

Can we overload destructor in java?

989

Can you change array size in java?

961

Is map ordered in java?

941

Can we sort arraylist in java?

988

How do you clear an arraylist in java?

985

Can a list be null in java?

1042

How to pass arraylist to stored procedure in java?

1160

Is list ordered in java?

970

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Un-Answered Questions { Core Java }

Does set allows null in java?

954

What is the purpose of static keyword in java?

959

Does java have extension methods?

975

Can you write a java class that could be used both as an applet as well as an application?

957

Explain about java sdk?

1033

What is a methodologist?

1063

How will you serialize a singleton class without violating singleton pattern?

1952

Explain java heap space and garbage collection?

1068

what is static import in java? Explain

1012

Which list is sorted in java?

1027

Explain about the select method with an example?

1176

Can you give names of Container classes?

2299

Explain differences between checked and unchecked exceptions in java?

1059

Is null a string?

994

What is a default method?

1044

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