What is a class component?
What do you mean by collectors in java 8?
What is difference between filereader and bufferedreader?
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)
why we use merge option in hybernate pls give a ex snippet
What is port number in java?
What is the difference between a factory and abstract factory pattern?
Where are the local variables stored?
What is %d in printf?
What is the old name of java?
Explain how hashmap works?
How many bits are used to represent unicode, ascii, utf-16, and utf-8 characters in java programming?
What is the purpose of encapsulation?
Does constructor creates the object ?
Can list be null in java?