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 3546

What is the return type of read()?

3 6890

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

2 11389

What for read() function?

3 8789

What happens to the Exception object after handling an exception?

2331

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

3 25109

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

2 4571

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

3 8055

When do you create an index?

2002

When does Exception occurs?

3 6131

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

4 6330

When is an object in the mean to garbage collection?

3 6255

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

2 8520

When finally clause is executed?

3 7289

When try and catch block is used ?

6 8873

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Un-Answered Questions { Core Java }

Does every java program need a main?

950

What does function identity () do?

927

How many types of operators are there?

938

What is arrays sort in java?

920

Why scanner is used in java?

1026

What does a boolean method return?

1169

Can we restart a dead thread in java?

947

Why is java called the platform independent programming language?

961

In a container there are 5 components. I want to display all the component names, how will you do that?

2145

What is the simpletimezone class in java programming?

1093

Which list is sorted in java?

979

When should I use stringbuffer?

967

What are the types of inner classes (non-static nested class) used in java?

1024

What is the default execution method in java?

1143

Which is bigger double or float?

918

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