Why volatile is used in java?

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What is a null check?

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wHAT IS DEFAULT SPECIFIER IN JAVA wHAT IS DEFAULT CONSTRUCTOR IN JAVA wHAT IS DEFAULT METHOD IN JAVA

12 Answers   IBM,

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Explain JMS in detail.

0 Answers   Amdocs,

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What is deserialization and how do we do deserialization?

3 Answers   Synechron,

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What is role of void keyword in declaring functions?

0 Answers   Adobe,

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what is diffrence between .NET and java?

2 Answers  

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Say you want to store the information about a number of pets in an array. Typical information that you could store for each pet (where relevant) would be • Breed of animal • Animal's name • Its birth date • Its sex • Whether it has been sterilised or not • When it is due for its next inoculation • When it last had its wings clipped For each type of pet (eg. dog, cat or bird) you would typically define a class to hold the relevant data. Note: You do not need to implement these classes. Just answer the following questions. 3.1.1 What would be the advantage of creating a superclass (eg. Pet) and declaring an array of Pet objects over simply using an array of Objects, storing each of the instances of the different pet classes (eg. Dog, Cat or Bird) in it? 3.1.2 Would you define Pet as a class or as an interface? Why? (2) (2)

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Is java same as core java?

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Differentiate between static and non-static methods in java.

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Difference between association, composition and aggregation?

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Can we create our own wrapper class in java?

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