JavaCalculating the User's SumWrite a complete program that reads in numbers and calculates the sum of the numbers in that range.Code SpecificationsIn the main method, read input from the user.Read in two integers from the user: a lower end of the range and an upper end of the range.Check if the numbers are valid: the lower number cannot be greater than the upper number.If the numbers are invalid, use a loop to ask for new numbers. Continue looping until you get two valid values.Write a method called calculateTheSum. The method takes in a lower and upper end of the range.The method calculates the sum of all values from lower (inclusive) to upper (inclusive).Invoke the method from main the output the result.Test CasesI recommend testing your code using the test cases below. I've listed the user inputs along with a sample of the result.User InputsResultlower = 10, upper = 1the program should ask for new inputlower = 5, upper = -5the program should ask for new inputlower = 1, upper = 10the method is invoked; the result = 55lower = -5, upper = 5the method is invoked; the result = 0lower = 1, upper = 2the method is invoked; the result = 3lower = -100, upper = -50the method is invoked; the result = -3825lower = 7, upper = 7the method is invoked; the result = 7

Step 1: Prompt and accept lower limit and upper limit of the range from the user. Step 2: If lower…

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ISBN:9780133594140

Author:James Kurose, Keith Ross

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Java

Calculating the User's Sum

Write a complete program that reads in numbers and calculates the sum of the numbers in that range.

Code Specifications

In the main method, read input from the user.
1. Read in two integers from the user: a lower end of the range and an upper end of the range.
2. Check if the numbers are valid: the lower number cannot be greater than the upper number.
3. If the numbers are invalid, use a loop to ask for new numbers. Continue looping until you get two valid values.
Write a method called calculateTheSum.
1. The method takes in a lower and upper end of the range.
2. The method calculates the sum of all values from lower (inclusive) to upper (inclusive).
Invoke the method from main the output the result.

Test Cases

I recommend testing your code using the test cases below. I've listed the user inputs along with a sample of the result.

User Inputs	Result
lower = 10, upper = 1	the program should ask for new input
lower = 5, upper = -5	the program should ask for new input
lower = 1, upper = 10	the method is invoked; the result = 55
lower = -5, upper = 5	the method is invoked; the result = 0
lower = 1, upper = 2	the method is invoked; the result = 3
lower = -100, upper = -50	the method is invoked; the result = -3825
lower = 7, upper = 7	the method is invoked; the result = 7

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