Answer:
The required code is given below with appropriate comments for better understanding
Explanation:
public class Population
{
 public static void main(String[] args)
 {
   int currentPopulation=312032486;
   int numSecInyear=24*60*60*365;//for one day 24 hours,60 min,60 sec
   System.out.println("current population:"+currentPopulation);
   int numBirths=numSecInyear/7;
   int numDeaths=numSecInyear/13;
   int numImmigrant=numSecInyear/45;
   //print the result using for loop
   for(int i=1;i<=5;i++){
     currentPopulation=currentPopulation+numBirths-numDeaths+numImmigrant;//add up births and immigrants, remove deaths
     System.out.println("Population After year-"+i+":"+currentPopulation);
   }
  Â
 }
}