What is illegal identifier in java?

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What is the use of java?

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how tha garbage collector know that the object will be deleted? on which algorithm the garbage collector works? what is the working principle of garbage collector? How manay types of garbage collectors r there?

1 Answers   HP, SparkTG,

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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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How to restrict a member of a class from inheriting by its sub classes?

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What is multithreading ???? How to stop multithrading in java????

1 Answers   Cognizant,

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What is the difference between Integer and int?

10 Answers   Infosys,

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Can we modify the throws clause of the superclass method while overriding it in the subclass?

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What do you mean by composition in java?

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What is the difference between static and non-static variables in java programming?

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what is the difference between String and StringBuffer classes?

2 Answers   Infosys,

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Define linked list and its features with signature?

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