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?

5 6678

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

1 6877

What are the OOPS concepts in Java ?

Satyam,

4 12040

What are the Object and Class that classes used for?

Mphasis,

3 8605

What are access modifiers in Java ?

6 10386

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

1 6077

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

IBM,

1 7223

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

2491

Different types of Layouts?

11 36673

Different types of modifiers?

RoboCom,

8 14704

What are the interfaces defined by Java.lang package?

1 7248

What are the operands of instanceof operator?

3 5477

methods in Applet?

1 4237

What are other modifiers?

Wipro,

2 4720

Name the packages in JDK?

2 8684

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Un-Answered Questions { Core Java }

What is linkedlist in java?

1001

Can a class with private constructor be extended?

946

What is the applet security manager, and what does it provide?

996

Can we have multiple catch block for a try block?

1019

How do you use compareto?

948

Can we use string in switch case in java?

1056

What is array pointers ?

1032

In which order the iterator iterates over collection?

993

What is generic class?

1092

What is a nullable field?

1036

what is deadlock? : Java thread

1009

What are the two types of java?

1174

How many JVMs can run on a single machine and what is the Just-In-Time(JIT) compiler?

1058

Why we used vector class?

1069

Is alive and join method in java?

1175

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