For below programming code requirement, pick your own problem from given topics. Topic should comprise of mini system that interacts with users. Topic examples:Government (Country, State so that some attributes are governed at base class level, citizens of country and state, employees)Banking system (checking, savings accounts, types of customers, fees)Student grading systemShopping Cart (add item departments, Multiple Shipping address, Multiple Shipping Methods)EZ pass toll collection and payment siteLibrary book/user account systemProgramming code requirement：1. Show your requirements as high-level flowcharts. 2. Create UML document to represent your idea. You can also include word file or pdf to explain what you are trying to do in simple words. 3. Inheritance 2 level hierarchy using subclass, superclass concepts like, person, employee, manager4. InterfaceAt least one interface that can be extended later like5. Polymorphism Method overloadingMethod overridingConstructor overloadingConstructor overriding6. Object oriented programming concepts
Proper testing methodsUse of Static methodsUse of Array/ArrayListUse of LoopsData ValidationsTry/Catch Block for exception handling7. Program should run as submitted

What must you do before formatting a paragraph?

We as humans write math expression in infix notation, e.g. 5 + 2 (the operators are written in-between the operands). in a computer’s language, however, it is preferred to have the operators on the right side of the operands, i.e. 5 2 +. for more complex expressions that include parenthesis and multiple operators, a compiler has to convert the expression into postfix first and then evaluate the resulting postfix.write a program that takes an “infix” expression as input, uses stacks to convert it into postfix expression, and finally evaluates it. it must support the following operations: + - / * ^ % (example infix expression: (7 - 3) / (2 + 2)postfix expression: 7 3 - 2 2 + /result: 1guidelines: 1. you will need to use stacks in three placesa. one for the parenthesis check [char stack]b. one during infix to postfix [char stack]c. one during evaluation [int stack]for a and b above, you can use same array and same push, pop method as both ofthem are char. but for evaluation you have int stack and you might consider to createanother push pop method to handle it. maybe push_int, pop_int, etc. or find otherstrategy to utilize existing push pop method2. you can create a function for obtaining operator priority. that function should take anoperator as input and return its priority as an integer. this function will you a lot andreduce repeated code3. during evaluation you will need to convert char into integer. example for single digit: char c = '5'; int x = c - '0';

Q-1 which of the following can exist as cloud-based it resources? a. physical serverb. virtual serverc. software programd. network device