Write a program using java programing language. Write a Java class (called ShowNum) that displays the same number of asterisks (row and columns) as is input in 2 numbers. Your class should have a...

Write a program using java programing language.

Write a Java class (calledShowNum) that displays the same number of asterisks (row and columns) as is input in 2 numbers.
Your class should have a default constructor (number1 is 0, number2 is 0) and
another constructor that inputs 2 numbers (integers).
You'll need accessor methods for the numbers and a display method that displays as follows:

Input:   2, 7
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Demo the class in a client (called ShowNumClient) that allows the user to run the program as many times as they want (enter number and use display method).
The user will signal with a sentinel (-1), when they want to terminate the client.
Make sure that each number entered in the client is between 1 and 30.