Source of StatePopulations.java

Structures and functions

public class StatePopulations

  1: //StatePopulations.java

  3: import java.util.HashMap;

  5: public class StatePopulations
  6: {
  7:     public static void main(String[] args)
  8:     {
  9:         //zyBook version is missing <> in the following line.
 10:         HashMap<String, Integer> statePopulation = new HashMap<>();

 12:         // 2013 population data from census.gov
 13:         statePopulation.put("CA", 38332521);
 14:         statePopulation.put("AZ", 6626624);
 15:         statePopulation.put("MA", 6692824);

 17:         System.out.print("Population of Arizona in 2013 is ");
 18:         System.out.print(statePopulation.get("AZ"));
 19:         System.out.println(".");

 21:         // 2014 estimated population
 22:         statePopulation.put("AZ", 6871809);

 24:         System.out.print("Population of Arizona in 2014 is ");
 25:         System.out.print(statePopulation.get("AZ"));
 26:         System.out.println(".");
 27:     }
 28: }