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You should override the hashCode() and equals() functions from the Object class. The default implementation of the hashcode() and equals(), which are inherited from the java.lang.Object needs an object instance's memory location. That can cause serious problems when two instances of the car objects have the similar color but the inherited equals() can give false because it uses the memory location, which is distinct for the two instances of object. Also the toString() method may be overridden to give a proper string representation of your object.
What is constructor chaining and how is it achieved in Java? A child object constructor always first requires to construct its parent (which in turn calls its parent constructo
State about the performance of java First versions of java were pretty slow. Java performance has gotten a lot better with aggressive just-in-time-compiler (JIT) techniques
What is the problem along with Relational Database and what solution you could suggest for it? When we store object orientated data within RDBMS it required to translate in to
Why uploading a web page is important? Describe in 2 - 3 lines? Through only uploading webpage we could place our data so that another can reach up to what we have loaded. Uplo
Validate() : Used to validate properties after they have been populated; known as before FormBean is handed to Action. Returns a collection of ActionError as ActionErrors. Followin
java coding
Creating applications based on SOA Select your implementation technologies carefully. Carefully check if Web services are suitable. Sometimes using traditional methods suc
how to request one servlet to another by passing value
For this assignment you are provided with a class called LNode which can be used as a list node for a linked list of ints. You are also provided with an abstract class called LList
How to Begin Java
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