Problem

(Traffic lights) Write a program that simulates a traffic light. The program lets the user...

(Traffic lights) Write a program that simulates a traffic light. The program lets the user select one of three lights: red, yellow, or green. When a radio button is selected, the light is turned on. Only one light can be on at a time (see Figure 1a). No light is on when the program starts.

FIGURE 1 (a) The radio buttons are grouped to let you turn only one light on at a time. (b) The program converts miles to kilometers, and vice versa. (c) The program converts between decimal, hex, and binary numbers.

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Solutions For Problems in Chapter 16

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