Write a Java program to input marks of five subjects Physics, Chemistry, Biology, Mathematics and Computer, calculate percentage and grade according to given conditions using if-else if: If percentage >= 90% : Grade A If percentage >= 80% : Grade B If percentage >= 70% : Grade C If percentage >= 60% : Grade D If percentage >= 40% : Grade E If percentage < 40% : Grade F Example Input Input marks of five subjects: 95 95 97 98 90 Output Percentage = 95.00 Grade A

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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.