Answer / Rajiv Singh Chaudhary

"In Java, a String is an object that represents a sequence of characters. Strings are immutable, meaning once created, they cannot be changed."

What is return used for in java?

1 Answers  

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What is aggregation and composition ?

1 Answers   Fidelity,

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What is 32 bit float?

1 Answers  

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What is casting in java programming?

1 Answers  

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Is it possible to make an array volatile?

4 Answers  

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What is the purpose of final keyword and when to use it?

1 Answers  

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Describe the Big-O Notation.

1 Answers   Global Logic,

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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)

1 Answers  

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Which object oriented concept is achieved by using overloading and overriding?

1 Answers  

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How can we find the sum of two linked lists using stack in java?

1 Answers  

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What is the parse method in java?

1 Answers  

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How hashmap increases its size in java?

1 Answers  

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