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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.
An introduction permits the user to add new methods or attributes to an existing class. This can then be explained to an existing class without having to change the structure of th
What is an Iterator? Some of the collection classes give traversal of their contents via a java.util.Iterator interface. This interface permits you to walk through a collection
What is Runnable JAR archives You can run a program stored within the JAR archive that has a main() method like this: $ java -cp eharold.jar MainClassName You must use the f
Explain about Drawing Lines? Drawing straight lines along with Java is easy. Just call g.drawLine(x1, y1, x2, y2) where (x1, y1) and (x2, y2) are the endpoints of your lines
Project Description: Computer vision and Image processing project to extract book title Skills required: Java, C Programming
I have been working on my compiler''s parser now. And for some reason i cant make my parse tree printer to work. SyntaxTree keeps on showing as null when i invoke the print() metho
I have a very simple app that I have developed and is in the AppStore. I need the app to be developed for Android as it is presently in Objective C only. All plist html/ lists s
We need a very good iOS and/or Android developer preferred to be from Egypt. He will be responsible in developing iOS or/ and Android apps for a company. All details will be provid
Project Description: We have a project on hold to complete a due task of a Java swing desktop audio and video server. The admin panel and other features are already implemented.
Manage valuable resources recycle and wisely them where possible, serialization cost and minimize network overheads, and optimize all your database functions. 1. Recycle and man
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