Home Discussion Discuss: Constructor Overloading in Java

  • ticket systemAlfonce king April 16, 2011 at 2:17 AM

    For more than 20 years, Country Express has delivered services for all rail operations- transit, light rail, high speed rail and long haul train journey in the country. Efficiency is a daily challenge that operators of rail transportations systems face. From operation management to passenger management, operators are entrusted with the responsibility of ensuring high levels of efficiency and safety at all times. The company had recently restructured itâ??s ticketing scheme and has entrusted your group to develop a system for them embodying the following modules; 1. Registration Module Every customer has the option to register onto the system. This information is used for the reward module mentioned below. Customer details such as name and identity card are required for registration. The system will subsequently generate a unique 6 digit code which will be used by the customer to purchase train tickets. This is a one-time registration. The customer however, need not register to purchase a train ticket, in which case points will not be credited to the user for purchases of the train ticket. 2. Reward Module For every RM1.00 spent, a customer shall accumulate one point which will be credited to the account of the customerâ??s 6 digit code. 3. Ticketing Module Provides a facility to the customer to purchase ticket at the train station. There are a total of 30 stations. The cost of getting from one station to an immediate station is RM1.00. Using the same calculation, the ticket price of getting from station 1 to 6 is RM5.00. In the same way, ticket price for getting from station 10 to 30 should be RM20.00. The rates however differ at night (7 pm â?? 11 pm) and early mornings (6 am â?? 7:15 am) where a 25% discount shall apply. Children are subjected to a 50% discount regardless of the time of travel. For group purchase (more than 5 people), a 10% discount shall apply. For every 1000 points accumulated by a customer, a discount of RM5.00 shall apply. Fields required for purchasing ticket(s) â?? 6 digit code (optional), station (departure), station (arrival), travel time (24 hours), No of adults, No. of children. The system will subsequently generate the ticket price and the customer will enter the payment amount. A remainder is produced should the payment amount exceed the required amount. Apart from generating a ticket the system will also display a customerâ??s cumulative points on each generated ticket. Develop a stand alone application using Java which will observe the defined specifications. In the interface use appropriate GUI components. Make appropriate use of the Layout managers. The interface should be attractive, very user friendly, crash proof, intuitive (i.e. acts as someone would expect it to act), and reasonably realistic. Java Programming Page 1 of 3 Diploma Part 2 Asia Pacific Institute of Information Technology 2009 * You can use your own judgements and assumptions should the above requirement specification is insufficient in order to develop a realistic program. You are required to include all the assumptions that you made in your assignment.

  • javaneo May 28, 2011 at 3:20 PM

    This is very good site

  • ConstructorMd.Danish Ahmad June 24, 2011 at 2:44 PM

    Sir,Plzz explain about constructor

  • Incorrect print statements.Nikitha Nahar September 12, 2011 at 3:18 PM

    In the constructor overloading program the print statements are incorrect . They should be correspondingly for first , second , third and fourth constructor. Good program.

  • javajitendra September 23, 2011 at 5:30 PM

    public class ConstructorOverloading{ public static void main(String args[]){ Rectangle rectangle1=new Rectangle(2,4); int areaInFirstConstructor=rectangle1.first(); System.out.println(" The area of a rectangle in first constructor is : " + areaInFirstConstructor); Rectangle rectangle2=new Rectangle(5); int areaInSecondConstructor=rectangle2.second(); System.out.println(" The area of a rectangle in first constructor is : " + areaInSecondConstructor); Rectangle rectangle3=new Rectangle(2.0f); float areaInThirdConstructor=rectangle3.third(); System.out.println(" The area of a rectangle in first constructor is : " + areaInThirdConstructor); Rectangle rectangle4=new Rectangle(3.0f,2.0f); float areaInFourthConstructor=rectangle4.fourth(); System.out.println(" The area of a rectangle in first constructor is : " + areaInFourthConstructor); } } class Rectangle{ int l, b; float p, q; public Rectangle(int x, int y){ l = x; b = y; } public int first(){ return(l * b); } public Rectangle(int x){ l = x; b = x; } public int second(){ return(l * b); } public Rectangle(float x){ p = x; q = x; } public float third(){ return(p * q); } public Rectangle(float x, float y){ p = x; q = y; } public float fourth(){ return(p * q); } }

  • java programminganjali October 19, 2011 at 11:43 AM

    Write a program using overload constructor to calculate the area of square (length*length) and display it. Display I and II. I. Initialize the sides of the square=3. II. User will enter the sides ofthe square. how to solve it!

  • constructor overloadingmargub Khan October 24, 2011 at 10:40 AM

    nice example is this and i think it is one of the best

  • JAVANikhil Patel December 26, 2011 at 10:54 AM

    hello sir, my question is how to write JAVA APPLET code in NetBeans7 ?

  • javajanani6* January 7, 2012 at 1:22 PM

    how to understand java programs?

  • constructorNEERAJ KUMAE NAGER January 18, 2013 at 9:21 AM

    difference b/w overloading and overriding

  • javaBalkrishna February 15, 2012 at 3:25 PM

    i m not understand ur example please a good ex. are given

  • regarding the upper program.Sudhansh Srivastava February 17, 2012 at 12:18 PM

    how do we can minimise this constructor overloading program, and also tell me that how a user can be asked to give input to the program.

  • javavenky March 25, 2012 at 7:17 PM

    constructors metarials

  • gudmandal Reddy. Veena Reddy April 10, 2012 at 4:39 PM

    Good one

  • javaMohd Arshad May 28, 2012 at 5:59 PM

    what is polymorphim?

  • wowrajesh July 7, 2012 at 7:44 AM

    current solution for constructor overloading in java

  • javam.saravanakumar July 13, 2012 at 10:31 AM

    hi sir,how can i learn java with in short time of period..thnk u sir

  • JAVA SE &EEsunil kumar July 30, 2012 at 9:30 PM

    LEARN EVERYTHING, nice concept of constructor , thanks.....

  • thnxlee August 13, 2012 at 2:46 PM

    thankd

  • Program outputNIRAV August 27, 2012 at 8:48 AM

    IN this program 14 error is there

  • HaiA Sreepriya October 1, 2012 at 1:35 PM

    Its very good example and easy to understand by the person who is very new to java

  • nicepoonam singh October 11, 2012 at 7:58 PM

    vry hlpful in my proct.......

  • querydileep July 1, 2013 at 5:43 PM

    what is meant by constructor overloading ?explain eith an example

  • querydileep July 1, 2013 at 5:44 PM

    what is meant by constructor overloading ?explain eith an example

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