package dancinggooglers;

import java.io.File;
import java.util.Scanner;

public class DanceScoreCalculator {


    public static void main(String[] args) {
        if(args.length <= 0 || args[0] == null) {
            System.out.println("You must enter a file to read");
            System.out.println("Usage: blah <filename>");
            System.exit(0);
        }

        File argFile = new File(args[0]);
        try {
            Scanner googleSpeakScanner = new Scanner(argFile);
            String firstLine = googleSpeakScanner.nextLine();
            Integer linesToScan = new Integer(firstLine);
            for(int i = 1; i <= linesToScan; i++) {
                String googleDancerLine = googleSpeakScanner.nextLine();
                DanceScoreCase danceCase = new DanceScoreCase(googleDancerLine);
                System.out.println(String.format("Case #%d: %d", i, danceCase.maxDancersThatCouldPass()));
            }
        }
        catch (Exception e) {
            e.printStackTrace();
        }
    }
}

package hk.polyu.cslhu.codejam.lib;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import org.apache.log4j.Logger;

public class FileStream {
	public static Logger logger = Logger.getLogger(FileStream.class);
	
	/**
	 * Read the content of file with the given file path
	 * 
	 * @param filePath String The location of file
	 * @return The content of file as an instance of list
	 */
	public static List<String> read(String filePath) {
		List<String> content = new ArrayList<String>();
		
		try {
			BufferedReader br = new BufferedReader(new FileReader(filePath));
			String line;
			
			while ((line = br.readLine()) != null) {
				content.add(line);
			}
			
			br.close();
			
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			logger.error("File is not found with the path \"" + filePath + "\"");
		} catch (IOException e) {
			// TODO Auto-generated catch block
			logger.error(e.getMessage());
		}
		
		return content;
	}
	
	/**
	 * Save the content to a file
	 * 
	 * @param filePath String The location of file to be saved
	 * @param content String The content to be saved
	 */
	public static void save(String filePath, String content) {
		try {
			BufferedWriter bw = new BufferedWriter(new FileWriter(filePath));
			bw.write(content);
			bw.flush();
			bw.close();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			logger.error(e.getMessage());
		}
	}
}
