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 6652

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

1 6870

What are the OOPS concepts in Java ?

Satyam,

4 12028

What are the Object and Class that classes used for?

Mphasis,

3 8585

What are access modifiers in Java ?

6 10362

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

1 6069

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

IBM,

1 7208

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

2491

Different types of Layouts?

11 36621

Different types of modifiers?

RoboCom,

8 14671

What are the interfaces defined by Java.lang package?

1 7244

What are the operands of instanceof operator?

3 5468

methods in Applet?

1 4230

What are other modifiers?

Wipro,

2 4715

Name the packages in JDK?

2 8662

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Un-Answered Questions { Core Java }

Why is singleton not thread safe?

1045

What is a default constructor and also define copy contrucyor?

1099

How do you include a string in java?

983

Can we have this () and super () together?

1041

Explain reverse a linked list recursive java solution?

982

Can we assign null to double in java?

1013

Explain about the dynamic behavior of core java?

1130

How are destructors defined in java?

1030

What is == in java?

1014

Explain about features of local inner class?

1131

Does java return by reference?

999

Is integer immutable in java?

981

What differences exist between iterator and listiterator?

1039

Explain jvm, jre, and jdk?

1012

Can a class be final?

936

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