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 command line arguments?

3 4754

What are order of precedence and associativity, and how are they used?

1 6061

What are the OOPS concepts in Java ?

Satyam,

4 10451

What are the Object and Class that classes used for?

Mphasis,

3 6957

What are access modifiers in Java ?

6 7961

What are the advantages of the model over the event- inheritance model?

1 5393

What are the common problems you have faced while implementing Java?

IBM,

1 6257

Name the components that are termed to be Heavy-weight component but available in Light-weight components?

1979

Different types of Layouts?

11 33351

Different types of modifiers?

RoboCom,

8 11974

What are the interfaces defined by Java.lang package?

1 6487

What are the operands of instanceof operator?

3 4111

methods in Applet?

1 3514

What are other modifiers?

Wipro,

2 3749

Name the packages in JDK?

2 7678

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Un-Answered Questions { Core Java }

What is difference between word and integer?

586

What is the properties class in java programming?

538

Which method returns the length of a string?

560

What is java full form?

518

What is role of void keyword in declaring functions?

564

What is string variable?

547

Which api is provided by java for operations on set of objects?

898

Explain how can you debug the Java code?

582

Explain the usage of this with constructors?

520

What is valid keyword in java?

545

Does the order of public and static declaration matter in main method?

605

How many types of exception can occur in a java program?

526

What is finalize method?

569

Can we create an object if a class doesn't have any constructor ( not even the default provided by constructor ) ?

544

what is deadlock? : Java thread

517

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