/** * 检查File对象是文件还是目录 * @author guoyoujun * @date 2014-3-17 */ public class CheckDirectoryOrFile {
/** * java.io.File包含两个方法:isFile(); isDirectory() * <p>isFile();检查改文件对象是否是普通文件,是则return true; 如果文件不存在或者是目录则return false * <p>isDirectory();检查文件对象是否是目录,是则return true; 如果目录不存在或者是普通文件则return false * <p>判断之前应该先exists(); * @param args */ public static void main(String[] args) { File file = new File("/Users/GYJ/java1.txt"); File dir = new File("/Users/GYJ/funshion"); File notExists = new File("/Users/GYJ/notafile"); //java1.txt文件存在 System.out.println("/Users/GYJ/java1.txt is file?" + file.isFile()); System.out.println("/Users/GYJ/java1.txt is dir?" + file.isDirectory()); //funshion是目录 System.out.println("/Users/GYJ/funshion is file?" + dir.isFile()); System.out.println("/Users/GYJ/funshion is dir?" + dir.isDirectory()); //notafile不存在 System.out.println("/Users/GYJ/notafile is file?" + notExists.isFile()); System.out.println("/Users/GYJ/notafile is dir?" + notExists.isDirectory()); }
}
out put========== /Users/GYJ/java1.txt is file?true /Users/GYJ/java1.txt is dir?false /Users/GYJ/funshion is file?false /Users/GYJ/funshion is dir?true /Users/GYJ/notafile is file?false /Users/GYJ/notafile is dir?false