
Concept explainers
Write a program that reads in numbers from the user and outputs the information specified below.
Part One: Get Valid Input
Read in two integers from the user: a lower end of a range and an upper end of a range. Check if the numbers are valid (lower cannot be greater than upper).
If the numbers are invalid, use a loop to ask for new numbers. Continue looping until you get two valid values.
Part Two: Calculate the Sum
Use a loop to calculate the sum of all values from lower (inclusive) to upper (inclusive). Output the sum to the user.
Part Three: Analyze the Sum
Determine if the sum is even or odd.
Determine if the sum is positive, negative, or zero.
Output this information to the user.
Part Four: Calculate the Average
Calculate the average of all numbers in the range from lower (inclusive) to upper (inclusive).
Style and Additional Coding Requirements
- code should compile
- properly space and indent your code
- follow Java naming conventions for variables (lower camel case with no underscores)
- choose the best loop and conditional structure for the task
- write your program in a way that reduces duplicated or repeated code

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