Import java. io. File; import java. io. FileNotFoundException;
import java. util. Scanner;
public class OwlPopulation extends Owl{
private String fileName;
private Owl[] data;
public void populateData() throws FileNotFoundException{
File f = new File(fileName);
Scanner scanner = new Scanner(f);
int numLines = 0;
while(scanner. hasNextLine()){
numLines++;
String s = scanner. nextLine();
}
scanner. close();
data = new Owl[numLines]; //data is is allocated the exact amount of space it needs
scanner = new Scanner(f);
//TODO: Populate the data with owls constructed from the lines of the file given
}
public OwlPopulation(String fileName) throws FileNotFoundException{
//TODO: Populate the class variables in OwlPopulation
}
public double averageAge(){
//TODO: implement
return -1;
}
public Owl getYoungest(){
//TODO: implement
return null;
}
public Owl getHeaviest(){
//TODO: implement
return null;
}
public String toString(){
//TODO: implement
return null;
}
public boolean containsOwl(Owl other){
//TODO: method you can implement as a helper function to your merge method
return false;
}
public void merge(OwlPopulation other){
//TODO: a brief overview of what you can do to implement this method is given below:
//1) determine (and store) the distinct owls in the other population.
//2) make a new data array to hold the correct number of owls for the merged population
//3) copy over the distinct owls from each population to the data array
//4) set the new data array to "this" data (where is the merged population? what happens to the original populations?)
}
public int popSize(){
return data. length;
}
public static void main(String[] args) {
try {
//The following should run when you are complete. Feel free to comment out as you see fit while you work.
OwlPopulation pop1 = new OwlPopulation("owlPopulation1.csv") ;
System. out. println(pop1);
System. out. println(pop1.popSize());
OwlPopulation pop2 = new OwlPopulation("owlPopulation2.csv") ;
System. out. println(pop2);
System. out. println(pop2.popSize());
pop1.merge(pop2);
System. out. println(pop1);
System. out. println(pop1.popSize());
}
catch (FileNotFoundException f){
System. out. println("File not found.");
}
}
}