Write a Java class, called RatioClass, with three attributes a $($int$),$ b $($int$),$ and ratio $($double$).$ Write another Java class, called ComputeRatio, with a main method which reads two positive integers a and b$,$ and the

creates a RatioClass object called r that will be used to store the values entered by the user. The main method should validate the user input for the value of b as being different from zero. Each time the user enters a zero value for b$,$ an error message should be displayed and the user should be asked to enter the number again. When the user enters a non$-$zero value for b$,$ the program should store the ratio a$/$b in the ratio attribute of the created object r$,$ and display the ratio on the screen.