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 optimize the javac output?

1044

What is the destroy method?

1062

What are controls and their different types in awt?

1099

What is the use of object and class classes?

1054

What is garbage collection? What is the process that is responsible for doing that in java?

1120

What is the public method modifier?

1034

Why java is platform independent? Explain.

1020

What is the difference between choice and list?

1104

What are the access modifiers available in java?

1147

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

1009

Can each java object keep track of all the threads that want to exclusively access it?

964

How do you allocate memory to object?

1013

What is the private method modifier?

1107

What is remote method invocation (rmi)?

1080

What are the advantages and disadvantages of reference counting in garbage collection?

1048

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Un-Answered Questions { Core Java }

What is meant by method overriding?

1126

Explain the use of shift operator in java. Can you give some examples?

991

what are the states associated in the thread? : Java thread

1081

Can I overload to string method

1455

What is a “stateless” protocol ?

1006

What is object cloning in Java?

1122

How would you convert bytes to string?

1003

Can substring create new object?

1142

Is there any tag in htm to upload and download files?

1053

What is the difference between procedural and object-oriented programs?

987

What is the use of java?

976

what are the disadvantages of indexes in oracle?

2569

What is a condition in java?

1027

Can you declare the main method as final?

1030

What is the use of default method in interface in java?

1018

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