import java.util.*;

public class CompoundFile extends File {
		// instance varible to hold the file list;
	ArrayList File_list; 

        	// constructor
        CompoundFile(File oneFile, String name){
		super(oneFile,name);
		File_list = new ArrayList();
        }

	public CompoundFile getDir() {
		return this;
	}	

		// method to check if there is a file got the name str
	public boolean isExist(String str) {
		if (!File_list.isEmpty()) {
                	for (int k = 0; k < File_list.size(); k ++) {
                        	File tmpFile = (File)(File_list.get(k));
                        	String nameFound = tmpFile.getFileName().getI();
                        	if (nameFound.compareTo(str) == 0)
                                	return true;
                	}
			return false;
		}
                return false;
        } // end of isExist(String)

		// method to print the disk usage
	public void print(String s) {
		String dirName = this.getFileName().getI();
		String str = s + dirName;
		if (File_list.isEmpty()) 
			System.out.println(str);
		else {
			for (int k = 0; k < File_list.size(); k ++) {
				File tmpFile = (File)(File_list.get(k));
				tmpFile.print(str + "/");
			}
			System.out.println(str);
		}	
	} // end of print method

}// end of class compoundFile