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 7500

How applets will communicate with each other?

1 4299

What method is used to compare two strings ?

4 10260

How to know the host from which Applet is originated?

Wipro,

1 3581

How to prevent a field from serialization ?

2 10191

How to add panel to a Frame?

5 14877

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

4 7862

How to access a method that it declared as protected?

3 6420

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

3 7178

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

1 4157

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

5 8396

How to display names of all components in a Container?

Microsoft, Wipro,

2940

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

2 6509

What are Inner classes?

4 7276

Is &&= a valid Java operator?

2 13517

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Un-Answered Questions { Core Java }

What is the longest unicode character?

1156

What are the important features of Java 9 release?

1001

What is the purpose of static keyword in java?

963

Why static functions are used?

1100

Which java version is latest?

1041

What are kinds of processors?

994

Is java a compiler?

987

What is executor memory?

952

Explain thread in java?

1171

How do I remove a character from a string in java?

966

What is java Applet?

1110

which class is the wait() method defined in? : Java thread

951

How do you write methodology?

989

In which language java is written?

984

What is the format specifier?

941

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