DirMaker.java

package cn.edu.ustc.aaron.common;

import java.io.File;
import java.io.IOException;

public class DirMaker {
    
    /**
     * Enhancement of java.io.File#createNewFile()
     * Create the given file. If the parent directory  don't exists, we will create them all.
     * @param file the file to be created
     * @return true if the named file does not exist and was successfully created; false if the named file already exists
     * @see java.io.File#createNewFile
     * @throws IOException
     */
    public static boolean createFile(File file) throws IOException {
        if(! file.exists()) {
            makeDir(file.getParentFile());
        }
        return file.createNewFile();
    }
    
    /**
     * Enhancement of java.io.File#mkdir()
     * Create the given directory . If the parent folders don't exists, we will create them all.
     * @see java.io.File#mkdir()
     * @param dir the directory to be created
     */
    public static void makeDir(File dir) {
        if(! dir.getParentFile().exists()) {
            makeDir(dir.getParentFile());
        }
        dir.mkdir();
    }
    
    public static void main(String args[]) {
        String filePath = "./b/c.txt";
        File file = new File(filePath);
        try {
            boolean created = createFile(file);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}