Assume that you have built a lie detector which detects the level of chemicals X and Y. If the sum of the amounts of X and Y is greater than 30, then the person is telling the truth. Write Java code to take in the values of X and Y and detect whether the person is telling the truth or not. If the person is telling the truth, display "The statement said by the person is true". If the person is lying then display "The statement said by the person is false".   Sample input: 12 23 Sample output: The statement said by the person is true

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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.