Write a program that calculates the energy neededto heat water from an initial temperature to a final temperature. Your programshould prompt the user to enter the amount of water in kilograms and the initialand final temperatures of the water. The formula to compute the energy isQ = M * (finalTemperature – initialTemperature) * 4184where M is the weight of water in kilograms, initial and final temperatures are indegrees Celsius, and energy Q is measured in joules. Here is a sample run:   Enter the amount of water in kilograms: 55.5Enter the initial temperature: 3.5Enter the final temperature: 10.5The energy needed is 1625484.0

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Variables and Constant

Constants and variables are widely used in mathematical equations and expressions. They are also commonly found in the domain of programming, where each language has its own way to differentiate between a constant and a variable. Since they have all sorts of applications, knowing their differences is a good place to start.