-Create simple cashier system using java that will first ask the customer's name. It should continue to accept a price of an item and displays the current total while the user input is not equals to zero.
-The program should ask the user if the customer is a senior citizen. If the user input is 'Y' the current total should have a discount of 20%. Otherwise, if the user input is 'N', no discount.
-The program should then display the total amount, and then prompts the user to enter cash. While cash is insufficient, it would continuously ask the user to enter cash until it is sufficient to pay the total amount.
-Then, displays the amount of change.
-Lastly, display text thanking the customer.

Why is it a good idea to leave an interview being courteous and polite?

Write a program that uses a widgetviewer object to do the following: generate two random integers between 1 and 9 (inclusive). name one of them x, the other y. display them to the user using jlabel objects. create a jlabel object displaying the text "enter an operation number." create a jtextfield for the user's input. create a jbutton displaying the text "press here when you've entered your operation." use addandwait to add it to the widgetviewer object. when the user clicks the jbutton, evaluate operation in the following order to determine the one and only mathematical operation to perform on x and y. use a jlabel to display the result. if operation is between 1 and 10 inclusive, add x and y. if operation is evenly divisible by 4, subtract y from x. if operation is evenly divisible by 5, use integer division to divide y into x. if operation is an even number, use floating point division to divide y into x. if none of the other tests on operation apply, multiply x and y. note: operation can be negative or zero.

Acontact list is a place where you can store a specific contact with other associated information such as a phone number, email address, birthday, etc. write a program that first takes in word pairs that consist of a name and a phone number (both strings). that list is followed by a name, and your program should output that name's phone number.