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 many times garbage collector will invoke an object?s finalize() method?

4 7309

How applets will communicate with each other?

1 4199

What method is used to compare two strings ?

4 10080

How to know the host from which Applet is originated?

Wipro,

1 3474

How to prevent a field from serialization ?

2 10052

How to add panel to a Frame?

5 14673

How can a class be accessed, If no access modifiers are declared?

4 7681

How to access a method that it declared as protected?

3 6266

How to access a variable if it is declared as private?

3 6968

How to re-get an object that is collected by garbage collector?

1 4072

What we have to do, when we don't want to implement all methods of an interface?

5 8185

How to display names of all components in a Container?

Microsoft, Wipro,

2892

Name the package that most of the AWT events that supports event-delegation model are defined?

2 6399

What are Inner classes?

4 7080

Is &&= a valid Java operator?

2 13304

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Un-Answered Questions { Core Java }

What is the difference between throw and throws keywords?

993

What is the difference in between cpp and java? Can u explain in detail?

1029

What are the steps in the jdbc connection?

962

What is a layout manager and what are different types of layout managers available in java awt?

1205

Can java run on google chrome?

1143

Name container classes in java programming?

1026

Is java util list serializable?

895

What is ctrl m character?

993

Does printwriter create a file?

913

From the two, which would be easier to write: synchronization code for ten threads or two threads?

1002

What is passed by reference and pass by value ?

986

Does string is thread-safe in java?

1025

Why hashset is used in java?

1003

What happens when main () method is declared as private?

1088

What is sizeof () operator?

927

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