Implement a recursive divide and conquer algorithm that finds the largest prime number in a list of integers. A prime number is a number that is only evenly divisible by itself and 1 (1,2, 3, 5, 7, 11, etc). It should meet the following requirements: The program shall determine which of the integers is the largest prime or indicate if there are no prime numbers.
The program shall use a recursive divide and conquer algorithm to find the largest prime number.
The program shall use a graphical user interface to allow the user to select a file from any location on their computer. Contain a list of prime number for the program.

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.

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