import java.io.*;

public class WordFinder
{
   public static void main(String[] args)
   {  
      new WordFinder();
   }
   
   public WordFinder()
   {
      find("a.txt","area");
      find("b.txt","area");
      find("a.txt","/male","deaths");
      find("b.txt","/male","deaths");      
   }
   
   public void find(String fileName,String word)   // parameters
   {
      String find = word;
      
      try
      {
         BufferedReader file = new BufferedReader(new FileReader( fileName ));
         do
         {
            String w = file.readLine();
            if (w.indexOf(find)>=0)
            { System.out.println(fileName +"  " + w); }
         } while (file.ready());
         file.close();
      }
      catch (IOException ex)
      {  System.out.println(ex.toString()); }
   }  

   public void find(String fileName,String word,String another)   // parameters
   {  // POLYMORPHISM   
      
      try
      {
         BufferedReader file = new BufferedReader(new FileReader( fileName ));
         do
         {
            String w = file.readLine();
            if (w.indexOf(word)>=0 && w.indexOf(another)>=0  )
            { System.out.println(fileName +"  " + w); }
         } while (file.ready());
         file.close();
      }
      catch (IOException ex)
      {  System.out.println(ex.toString()); }
   }  
   
   
}

/**************
The program above searches for the String "population".
Then it prints the entire line of text
that contains the word "population".

  population and culture were heavily shaped by immigrants from throughout
  18.11 births/1,000 population (2008 est.)
  7.43 deaths/1,000 population (2008 est.)
  0 migrant(s)/1,000 population (2008 est.)
  /total population:/ 0.97 male(s)/female (2008 est.)
  /total population:/ 76.36 years
  /total population:/ 97.2%
  population, an export-oriented agricultural sector, and a diversified


Unfortunately, it does not print the total population
for the country.

Changing to "Population" doesn't quite solve the problem.

  Population:
  Population growth rate:

The files in the folder are named "a.txt", "b.txt" ...

(1) Look inside the files and figure out why the Population
    number does not get printed. Explain the cause of the problem.









(2) By examining some of the files, figure out
    how the program can be changed so that it prints
    the total land area of a country.
    
    
    
    







***************/