Core Java Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Core Java Interview Questions

Questions Answers Views Company eMail

Explain Public static void main?

IBM, Vetech,

2 19947

What is file class and what is its purpose?

1 4256

what is Remote Reference Layer ?

1 5429

What is static binding and where it occurs?

4 10099

Can a Byte object be cast to a double value?

KO,

3 16222

Can a double value be cast to a byte?

3 11218

Can a for statement loop indefinitely?

3 10003

what is the form of storage space in java?

5 9248

What are the latest versions in JAVA related areas?

Netcraft,

3 8188

What is the minimum and maximum length of an identifier?

TCS,

6 17030

What class is used to implement a Throwable array?

3 7479

What is the default initialized value of String type variable?

4 7539

What is the default initialized value of a boolean type variable?

3 5716

When garbage collector invokes object?s finalize() method?

5 8108

How Applets & Servlets will communicate with each other?

2 7572

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Un-Answered Questions { Core Java }

What is subsequence of a string?

1102

What is the static keyword?

1088

What are internal variables?

1003

Difference between collection, collection and collections in java?

1017

Why does it take so much time to access an applet having swing components the first time?

1930

What does localhost mean?

959

What causes memory leaks in java?

943

Why is a string immutable?

1018

Explain different types of thread priorities ?

1089

What is 32 bit float?

1002

What is a boolean flag in java?

1038

What is lazy programming?

1046

Why we use multi threading instead of multiprocessing?

1067

What is static import?

1177

Explain access modifiers in java.

1049

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