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 to create an interface?

1086

Why convert an applet to an application?

1104

How to use Media tracker Class.

1129

How to use string tokenizer class.

1209

Explain the overview of UDP messaging.

1129

How to create com object in Java?

1078

Explain the Propertie sof class?

1050

When object is created and destroyed?

1105

Explain the JDB in depth & command line.

1016

Give example to differentiate between call by value and call by reference.

TCS,

1063

Can you declare a private method as static?

TCS,

1154

How do you classify Dialog Box?

CGI,

1121

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

Tech Mahindra,

1145

If try block is successfully executed, Then Is Finally block executed?

PUCIT,

1086

What is final, finally, finalize?

1110

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Un-Answered Questions { Core Java }

What is complexity in java?

1048

Can java list contain duplicates?

1014

What is the difference between the direct buffer and non-direct buffer in java?

1032

Garbage collection in java?

1019

What does the “final” keyword mean in front of a variable? A method? A class?

1000

how to create multithreaded program? Explain different ways of using thread? : Java thread

990

What are the loops in java?

987

Define immutable object?

1063

Can an interface be final?

1030

What is string builder?

894

Is oracle charging for java?

1034

What is meant by method overriding?

1113

Define "Access specifiers" in java.

1173

What is meant by 'Class access modifiers'?

1048

Are the imports checked for validity at compile time? Will the code containing an import such as java.lang.abcd compile?

1105

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