Write a Java program that computes the sum and the average of any three decimal numbers provided by the user.

The program asks the user to input three decimal numbers one at a time. It will compute the sum and the average of the three numbers. Then it will display the three numbers, their sum and the average in a single output dialog box. See Test section below.

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Test Run

Enter the first number:

2.5

Enter the second number:

3.3

Enter the third number:

4.4

The sum of 2.5, 3.3 and 4.4 is 10.2

The average of 2.5, 3.3 and 4.4 is 3.4