Java program for calculating fractions
问题 The purpose of the program is to get two user inputs for a fraction, receive a operator from the user, and then to get two more user inputs for a second fraction. The program must check that the numbers used in both fractions range between 0-99 and have a non-zero denominator. The program also has to make sure that the user inputs a valid operator (-,+,*,/). The only problem I am facing now is that none of my variables are being initialized and that I don't know how to make the output look