Question: Repeat Practice Program 7 using JOptionPane, which is described in the graphics supplements of Chapters 2 and 3. Practice Program 7 Combine the programs from

Repeat Practice Program 7 using JOptionPane, which is described in the graphics supplements of Chapters 2 and 3.

Practice Program 7

Combine the programs from Programming Projects 5 and 6 to read integer exam scores in the range 0 to 100 and to display the following statistics:

Total number of scores

Total number of each letter grade
Percentage of total for each letter grade

Range of scores: lowest and highest

Average score

As before, enter a negative score as a sentinel value to end the data input and display the statistics.

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