How do you take thread dump in java?

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What if constructor is protected in java?

0 Answers  

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What is the purpose of a default constructor?

0 Answers  

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watz the difference between abstract class and interface? Which one u ill choose as a designer?

1 Answers   Sonata,

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Is ResultSet class?

5 Answers   Bally Technologies, TCS,

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7) Suppose there is Student class like class student { int age; string name; } We want to store these objects in a HashMap. Do we need to override any methods in Student class? If any which ones and why? what if i just override equals or just hashcode? what will be the results in both the cases?

4 Answers   CSC, Nagarro, RBS,

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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 call by reference possible in java?

0 Answers  

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Can Applet have constructors?

5 Answers   Infosys,

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What causes memory leaks in java?

0 Answers  

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Tell me about your ability to work under pressure

0 Answers   AXA,

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List some important features of java 10 release?

0 Answers  

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