JAVA内的最简单的IO操作问题
package 使用FILE类;
import java.io.*;
import java.util.*;
public class TestFileClass {
public static void main(String[] args) {
// Create a File object
File file = new File("D:\\JAVA\\eclipse\\工作区\\简单输入输出\\us.txt");
System.out.println("Does it exist? " + file.exists());
System.out.println("Can it be read? " + file.canRead());
System.out.println("Can it be written? " + file.canRead());
System.out.println("Is it a directory? " + file.isDirectory());
System.out.println("Is it a file? " + file.isFile());
System.out.println("Is it absolute? " + file.isAbsolute());
System.out.println("Is it hidden? " + file.isHidden());
System.out.println("What is its absolute path? " +
file.getAbsolutePath());
try {
System.out.println("What is its canonical path? " +
file.getCanonicalPath());
}
catch (IOException ex) { }
System.out.println("What is its name? " + file.getName());
System.out.println("What is its path? " + file.getPath());
System.out.println("When was it last modified? " +
new Date(file.lastModified()));
System.out.println("What is the path separator? " +
File.pathSeparatorChar);
System.out.println("What is the name separator? " +
File.separatorChar);
}
}
哪位达人帮小弟看一下这个程序,为什么创建不也不了文件呢,不胜感激啊