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

Core Java Interview Questions

Questions Answers Views Company eMail

What do you mean by platform independence? What is an interface?

1048

What is the final access modifier in java?

1098

Which one will take more memory: an int or integer?

1256

What are the differences between forwarding () method and sendredirect() methods?

1127

What is the difference between length and length() method in java?

1131

What is a java applet? What is an interface?

1113

What is a jit compiler?

1154

What is the difference between a factory and abstract factory pattern?

1159

Can we have more than one package statement in the source file?

1074

What’s the difference between unit, integration and functional testing?

1123

How would you format a date in java? I.e. In the ddmmyyy format?

1395

How do you reverse a string in java without using string buffer?

1116

Why we used vector class?

1085

What are the different types of multitasking?

1122

What are java annotations?

1182

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Un-Answered Questions { Core Java }

What is hash in java?

999

What is the function of character?

1070

What is the main difference between java platform and other platforms?

1121

can used Protected Class outside Function.?

1120

What is data structure in java?

1007

What are the advantages of java?

1004

How you can force the garbage collection?

1004

Is 0 an even number?

1005

What is vector capacity in java?

1100

What does += mean coding?

948

What is the mapping mechanism used by java to identify IDL language?

1021

What is bean? Where it can be used?

1109

Give me example of derived data types.

1183

What do negative exponents mean?

1065

Which is easier netbeans or eclipse?

1078

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