Pay Per Click Advertising Revenue
Many Web sites have advertisements that help to generate revenue by keeping track of how many times users click on the ads. The process is called Pay Per Click (PPC), which directs traffic to Web sites run by vendors (sellers of services and merchandise). According to one well-known source, PPC revenue is calculated by dividing the cost of advertising by the number of times users click on an advertisement. Your task is to create an application that calculates weekly PPC revenue. Align all text boxes and labels holding calculated results on the right side. Implement input validation on all numeric inputs, and display an error message if a field is nonnumeric. A sample user interface design is shown in Figure 4-40.
Figure 4-40 Pay Per Click Advertising Revenue Application
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