日期:2014-05-20  浏览次数:20828 次

file问题
我的程序是这样的,我的问题是为什么我的file创建不成功,总是“does not exist”,要怎样才能创建成功?
Java code

package files;
import java.io.*;

class FileDemo
{
    static void p(String s)
    {
    System.out.println(s);
    }
    public static void main(String args[])
    {
        File f1=new File("f://test.txt");

        p("File Name:"+f1.getName());
        p("Path:"+f1.getPath());
        p("Abs Path:"+f1.getAbsolutePath());
        p("Parent:"+f1.getParent());
        p(f1.exists()?"exists":"does not exist");
    }
}



------解决方案--------------------
import java.io.*;

Java code

class FileDemo
{
    static void p(String s)
    {
    System.out.println(s);
    }
    public static void main(String args[]) [color=#FF00FF]throws IOException[/color]
    {
        File f1=new File("f://test.txt");
    [color=#FF00FF]f1.createNewFile();[/color]

        p("File Name:"+f1.getName());
        p("Path:"+f1.getPath());
        p("Abs Path:"+f1.getAbsolutePath());
        p("Parent:"+f1.getParent());
        p(f1.exists()?"exists":"does not exist");
    }
}

------解决方案--------------------

Java code
package files;
import java.io.*;

class FileDemo
{
    static void p(String s)
    {
    System.out.println(s);
    }
    public static void main(String args[])
    {
        File f1=new File("f://test.txt");
[color=#FF0000]f1.createNewFile();[/color]
        p("File Name:"+f1.getName());
        p("Path:"+f1.getPath());
        p("Abs Path:"+f1.getAbsolutePath());
        p("Parent:"+f1.getParent());
        p(f1.exists()?"exists":"does not exist");
    }
}