test2.java

来自「java应用开发详解」· Java 代码 · 共 38 行

import java.io.*;

public class test2 
{
    public static void main(String[] args) throws IOException 
    {
    	
    	File inputFile = new File("..\\file\\test.txt");
    	
        File printf=inputFile.getParentFile();
        System.out.println(printf);
        String  printf1=inputFile.getParent();
        
        if(printf.isDirectory())
	    System.out.println("the test.txt parent is " +printf1+ ",and it is a drectory");
	     
	String[] list1=printf.list();
	for(int i=0;i<list1.length;i++)
	{
	    System.out.println("file include " +list1[i]);
	}

	//File[] list2=printf.listFiles();
	//for(int i=0;i<list2.length;i++)
	//{
	//    System.out.println("file include " +list2[i].toString());
	//}

	//返回系统的根目录列表
	File[] list3=printf.listRoots();
	for(int i=0;i<list3.length;i++)
	{
            System.out.println("list3 include " +list3[i].toString());
        }
    			
    }
}