java例程练习（File类） - JAVA

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

public class TestFile {

public static void main(String[] args) {
String separator = File.separator;
String fileName = "myfile.txt";
String directory = "mydir1" + separator + "mydir2";

File f = new File(directory, fileName);

if (f.exists()) {
System.out.println("文件名：" + f.getAbsolutePath());
System.out.println("文件大小：" + f.length());

} else {
f.getParentFile().mkdirs();

try {
f.createNewFile();
} catch (IOException e) {
System.out.println(e.getMessage());
}
}
}

}

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