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 immutable class?

1128

Explain the importance of finalize() method.

984

Why a dead thread occurs?

994

Why synchronization is important in java?

1057

What are different types of states exist for a thread?

1029

is it possible to instantiate the math class?

1053

Explain how to force the garbage collection in java.

982

Can you explain the usages of class.forname()?

1088

What is an immutable class? How to create an immutable class?

1078

What is a java object and java application?

1064

Explain the significance of listiterator.

1122

Define reflection.

1012

What is the best way to findout the time/memory consuming process?

1042

What is polymorphism in java? What are the kinds of polymorphism?

1095

What is final?

1089

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Un-Answered Questions { Core Java }

How to display arraylist values in java?

1023

What is the difference between form & report?

1053

What is the difference between static and global variables and also define what are volatile variables?

1072

What is the point of java?

1041

How to sort list of list in java?

1103

What is final?

1089

Why Do I Get A "permission Denied" Error After Downloading The .jnlp Java Launcher For The Vkvm?

1163

Can we extend singleton class?

965

What is the synonym of framework?

1015

What is thread synchronization in java?

912

Differentiate between == and equals().

1067

What are the 4 types of research methods?

938

How does system arraycopy work in java?

1147

what is function overloading in java?

1320

What is the purpose of return statement?

1076

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