FileAppender.java

package problems;

import java.io.InputStream;
import java.util.ArrayList;
import java.util.Scanner;

public class FileAppender {
	public static void main(String[] args) {
		InputStream in = System.in;
		Scanner scanner = new Scanner(in);
		int totalFiles = Integer.parseInt(scanner.nextLine());
		String str = "";
		ArrayList<String> array = new ArrayList<String>();
		String temp = "";
		int counter = 0;

		// press CTRL+D to stop STDIN after data input

		// Store input from STDIN
		while (scanner.hasNextLine()) {
			temp = scanner.nextLine();
			counter++;
			if (temp.length() > 0) {
				counter = 0;
				array.add(temp);
			} else {
				if (counter == 3) {
					array.add("-");
				}
			}
		}

		String[] list = new String[array.size()];
		String[] result = new String[array.size()];

		list = array.toArray(new String[array.size()]);

		// Replace $ and append file names at first index
		for (int i = 0, j = 0; i < list.length; i++) {
			result[j++] = list[i].replaceAll("\\$", "");
			if (list[i].equals("-")) {
				list[0] = list[0].split("\\.")[0] + list[i + 1].substring(0, 1).toUpperCase()
						+ list[i + 1].substring(1);
				i = i + 1;
			}
		}
		result[0] = list[0];
		
		// Write to STDOUT
		for (String s : result) {
			if (s != null && !s.equals("-"))
				System.out.println(s);
		}
	}
}