Lab Session-5 CSIT221 Fall 2002

1
Lab Session-5 CSIT221 Fall 2002

• Using default and parameterized constructors with
  classes and choosing a constructor.

2
Lab Exercise (Demo Due Oct 1st Sec 01 and Oct
3rd Sec 02)

• (Refer to the program developed for lab4). The
  cash register class should now contain two
  constructors. The default constructor should
  initialize the length of the price list to zero
  and all the prices to zero. The parameterized
  constructor invokes user interaction. The
  parameter passed is the length of the list. The
  constructor then initializes prices of all the
  items in the list through user interaction. User
  interaction examples are on the next slide.

3
User Interaction Examples

• Source program example
• Cash_reg Qmart(9)
• Parameterized constructor interaction
• Welcome to Qmart
• There are 9 items in the price list
• Please enter the price of item1
• 23.45
• Please enter the price of item2
• 45.66
• (continued)