Answer Posted / pranab dutta

Vector is synchronized
Arraylist is not synchronized.

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1025

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1100

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Can java program run without jre?

1004

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Discuss 2D arrays.

1040

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Does a class inherit the constructors of its superclass in java programming?

1097

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957

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969

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1031

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1005

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1109

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What are different access specifiers in java? Explain

1113

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4.1 Supply contracts (in the form of comments specifying pre- and post conditions) for the enqueue() method of the LinkedQueue class given in the Appendix. (2) 4.2 Let Thing be a class which is capable of cloning objects, and consider the code fragment: Thing thing1 = new Thing(); //(1) Thing thing2 = thing1; //(2) Thing thing3 = (Thing) thing1.clone(); //(3) Explain how the objects thing2 and thing3 differ from each other after execution of the statements. (

1863

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What is the purpose of a volatile variable?

1027

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What is the benefit of abstract class?

941

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What is the difference between the font and fontmetrics classes in java programming?

1134

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