import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.StreamTokenizer;
import javax.swing.JFileChooser;


public class UTP_2
{
	public static void main(String[] args)
	{
		JFileChooser chooser = new JFileChooser();
	    chooser.setFileFilter(new JavaFileFilter());
	    int returnVal = chooser.showOpenDialog(null);
	    if(returnVal == JFileChooser.APPROVE_OPTION)
	    {
	    	try
	    	{
				FileInputStream fis = new FileInputStream(chooser.getSelectedFile().getAbsolutePath());
				int iloscWariant = 0;
				int iloscIfow = 0;

				StreamTokenizer st = new StreamTokenizer(new InputStreamReader(fis));
				st.slashSlashComments(true);
				st.slashStarComments(true);
				while(st.nextToken() != StreamTokenizer.TT_EOF)
				{
					if(st.ttype == StreamTokenizer.TT_WORD)
					{
						if(st.sval.equals("if"))
						{
							iloscIfow++;
						}
					}
				}
				fis.close();

				BufferedReader br = new BufferedReader(new FileReader(chooser.getSelectedFile().getAbsolutePath()));
				String s = new String();
				String s2 = new String();
				while((s = br.readLine()) != null)
				{
					s2 += s;
				}
				br.close();
				s2 += ' ';
				iloscWariant = s2.split("wariant").length - 1;

				BufferedWriter bw = new BufferedWriter(new FileWriter(new File("C:\\Temp\\" + chooser.getSelectedFile().getName() + ".rep")));
				bw.write("Ilosc 'if': " + iloscIfow);
				bw.newLine();
				bw.write("Ilosc 'Wariant': " + iloscWariant);
				bw.close();
			}
	    	catch (FileNotFoundException e)
			{
				e.printStackTrace();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
	    }
	}

}