Write  a  Java  code to accept  marks of  a  student from  1-100 and  display  the grade according to the following formula.   Grade F if marks are less than 50 Grade E if marks are between 50 to 60 Grade D if marks are between61 to 70 Grade C if marks are between 71 to 80 Grade B if marks are between 81 to 90 Grade A if marks are between91 to 100

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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.