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 19934

What is file class and what is its purpose?

1 4250

what is Remote Reference Layer ?

1 5407

What is static binding and where it occurs?

4 10092

Can a Byte object be cast to a double value?

KO,

3 16210

Can a double value be cast to a byte?

3 11206

Can a for statement loop indefinitely?

3 9989

what is the form of storage space in java?

5 9233

What are the latest versions in JAVA related areas?

Netcraft,

3 8173

What is the minimum and maximum length of an identifier?

TCS,

6 17015

What class is used to implement a Throwable array?

3 7464

What is the default initialized value of String type variable?

4 7522

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

3 5702

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

5 8089

How Applets & Servlets will communicate with each other?

2 7556

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Un-Answered Questions { Core Java }

Can we have multiple catch block for a try block?

1019

Can you achieve runtime polymorphism by data members?

1149

What is difference between protected and private?

1077

Why we do exception handling in java and how many types of exceptions are there?

1127

What is private protected in java?

1052

Can we call the run() method instead of start()?

1040

What are the pillars of java?

920

How do you reverse a word in java?

1078

Can one thread block the other thread?

1030

Is finalize() similar to a destructor?

1022

How many bits are used to represent unicode, ascii, utf-16, and utf-8 characters?

1096

What is identifier give example?

1029

explain multi-threading in java?

1030

What are the 5 types of research methods?

1139

What is the function of http?

1031

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