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 7329

How applets will communicate with each other?

1 4205

What method is used to compare two strings ?

4 10094

How to know the host from which Applet is originated?

Wipro,

1 3484

How to prevent a field from serialization ?

2 10068

How to add panel to a Frame?

5 14688

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

4 7705

How to access a method that it declared as protected?

3 6280

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

3 6997

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

1 4076

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

5 8209

How to display names of all components in a Container?

Microsoft, Wipro,

2894

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

2 6410

What are Inner classes?

4 7107

Is &&= a valid Java operator?

2 13328

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Un-Answered Questions { Core Java }

how to prepare for IT Officers Interview in Banks

1919

What restrictions are placed on method overloading?

1130

Write a program to reverse array in place?

1022

String and stringbuffer both represent string objects. Can we compare string and stringbuffer in java?

928

Explain about strings in java?

1028

What is the gregoriancalendar class in java programming?

981

How can we achieve thread safety in java?

1095

What is difference between classpath and path variables in java?

1143

What is the purpose of methodology?

1033

How does java pattern compile work?

920

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

895

What does business logic mean?

952

What is difference between path and classpath variables?

1042

What is passing value java?

1006

Explain when noclassdeffounderror will be raised ?

999

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