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Problem: you are required to write a Java program that will prompt for and read 3 integer values vac1, vac2 and vac3
representing the number of people who did not take any dose (vac1), the people who took the first and second dose (vac2)
and those who took all the three doses (vac 3) of COVID-19 vaccine respectively.
Using nested ifs determine the characteristics of this population vaccination, and display the message:
• 50% vaccination hesitancy rate! If vac1 equals the sum of vac2 and vac3.
• higher immunity rate! If vac1 smaller than the sum of vac2 and vac 3.
• lower immunity rate! If vac1 is higher than the sum of vac2 and vac3.
Also is if the number of people vaccinated with the three doses vac3 is higher or equal to 90% the total of people
(vac1+vac2+vac3), display the message Wow herd immunity! Similarly, if the number of people not vaccinated (vac1)
is higher or equals 90% of the total of people (vac1+vac2+vac3), display the message arm yourself against COVID19. Finish off by displaying the total number of people (vac1+vac2+vac3) in all cases
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