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 are the standards to place package statement within a source code file?

1 3645

What is the return type of read()?

3 7046

What is the return type of readLine() when end of a file is reached?

2 11517

What for read() function?

3 8933

What happens to the Exception object after handling an exception?

2387

What is stop(), suspend(), resume() method?

3 25276

What are MalformedURLException and UnknownHost Exceptions and whey they will be thrown?

2 4748

Under what circumstances an object reference be cast to an interface reference?

3 8214

When do you create an index?

2051

When does Exception occurs?

3 6318

In what circumstances, compiler will supply a default constructor for a class?

4 6550

When is an object in the mean to garbage collection?

3 6412

What are init(), start() methods and whey they are called?

2 8649

When finally clause is executed?

3 7448

When try and catch block is used ?

6 9113

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Un-Answered Questions { Core Java }

What is use of set in java?

1024

What is one third plus one third as a fraction?

954

What is the difference between preparedstatement and statement in java?

1177

Explain different types of thread priorities ?

1112

Is empty in java?

1070

What is the purpose of javac exe?

1110

What is the difference between an inner class and a sub-class?

1034

What is autoboxing in java?

1081

What is final keyword in java? Give an example.

1028

What is charat java?

988

How do you input a string in java?

1094

Which method returns the length of a string?

1052

What are the types of java?

1120

What is the file extension for java?

1089

Explain the difference between string, stringbuffer and stringbuilder in java?

1017

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