Core Java Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Core Java Interview Questions

Questions Answers Views Company eMail

Can we declare variables inside a method as Final Variables?

3 12569

Can you call a constructor within a constructor?

7 15677

Can you declare a static variable in a method?

7 17247

How the elements are organized in GridLayout?

2 5138

How are this and super used?

IBM,

7 12329

How are this() and super() used with constructors?

9 19787

Without creating a new object, How you can retrieve a String or other object?

1 5289

How GUI component handle its own events?

1 5333

How you can create a radio buttion using Checkbox class?

1 4964

Can an unreachable object become reachable again?

DELL,

3 22405

Can applet in different page/s communicate with each other?

1 4629

How to add and remove nodes in Jtree?

1 3328

What is deadlock and how to avoid this?

2 6614

How to avoid the runtime exception ?

2 10190

How the elements are organized in BorderLayout?

5 8729

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Un-Answered Questions { Core Java }

What are methods in java?

994

Can java inner class be static?

1021

Are primitives objects?

1056

In which language java is written?

982

What classes of exceptions may be caught by a catch clause in java programming?

1179

How does sublist works in java?

974

What is the purpose of a volatile variable?

1058

How do you declare an array that will hold more than 64KB of data?

1293

Can an object subclass another object?

1112

Differentiate between postfix and prefix operators in java.

1127

What value is a variable of the string type automatically initialized?

1114

Discuss about garbage collector in Java.

1079

How to handle a web browser resize operation?

1076

What is a numeric literal?

1083

Which collection is ordered in java?

973

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