User defined key class in the hashtables aur hashmap, JAVA Programming

Assignment Help:

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.

 

879_Untitled.png


Related Discussions:- User defined key class in the hashtables aur hashmap

J2ee java website rebuild, J2EE Java Website rebuild Project Description...

J2EE Java Website rebuild Project Description: We are seeking an experienced developer to re-build a Java/J2EE based Website. We are in requirement to reconstruct our website

Please answer this, Assignment Help >> JAVA Programming Learning Outcomes:...

Assignment Help >> JAVA Programming Learning Outcomes: 1. Use different program control statements in a programming language 2. Demonstrate the use of arrays with a programming

Develop a java application, Project Description: Modules of software: ...

Project Description: Modules of software: 1 - Serial RS232 comm port comunication 2 - NanoHTTPD serving some processed pages 3 - System tray application to indicate sta

Life span of variables, While you declare a variable in a function, the var...

While you declare a variable in a function, the variable can be accessed within that function only.  While you exit the function, the variable is destroyed.  These variables are ca

High quality leads and directory scraping, Project Description: (1) I wa...

Project Description: (1) I want a comprehensive list of Australian chiropractors. The data requires coming from various sources including Google but the following are obligatory

Convert an existing flash file into html5, REQUIREMENT: We are seeking a si...

REQUIREMENT: We are seeking a simple tool that will convert an existing flash file (.SWF) into HTML5. Our purpose is to convert small flash games into html5 games. Please NOTE: We

Give the example of mixing data type in java, Give the example of mixing da...

Give the example of mixing data type in java? Mixing Data Types Order can form a difference while data types are mixed. For example, 1 / 2 * 3.5 = 0.0 3.5 * 1 / 2 = 1.75 3.5 /

How we use a car object in a different class, How we Use a Car object in a ...

How we Use a Car object in a different class ? class Car { String licensePlate; // e.g. "New York 543 A23" double speed; // in kilometers per hour double maxSpeed;

Confidentiality and privacy - security, The confidentiality and privacy may...

The confidentiality and privacy may be accomplished through encryption. Encryption may be: Private-key or symmetric: This is based on a single key. This needs the sender and the

Implement the list calss, Your next task is to implement the MovieList clas...

Your next task is to implement the MovieList class that manages the details for a list of DVD Movies read from the specified data file. The constructor will include a parameter tha

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd