4-7: Exercises

Exercise 4-10: Stopwatch

Create a VB project that implements a stopwatch. Display the elapsing time in labels using the format mm:ss.t (minutes in 2 digits, colon, seconds in 2 digits, dot, tenths of seconds).

Provide whatever functionality is needed to let the user:

• Start,
• Stop,
• Resume, and
• Reset the display.

They should be able to Exit at any time.

The images to the right show one approach to the user interface, your design need not be the same. It uses three (3) buttons, in addition to the Exit button:

Start

starts the clock

hides itself

shows the Stop button

Stop

stops the clock

hides itself

shows the Reset button

changes the Start button Text property to "Resume"

shows the Start button

Reset

hides itself

changes the Start button Text property to "Start"

shows the Start button

Resume

is actually Start