What all methods are used to prevent thread execution ?
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What is meant by design patterns?
How do you check if two strings are equal in java?
Can a static class implement an interface?
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)
What is Mutex (Mutual Exclusion Object) ?
What is garbage collection? What is the process that is responsible for doing that in java?
How many Java environments are there?
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What is an infinite loop?
Explain the difference between the public, private, final, protected, and default modifiers?
How can i add a button in applet in java ???
What is yield () in java?
What is the benefit of inner / nested classes ?