at java.io.WinNTFileSystem.createFileExclusively(Native Method)
at java.io.File.createNewFile(File.java:850)
at com.softeam.jbs.lesson6.FileWork.FileCopy(FileWork.java:87)
at com.softeam.jbs.lesson6.FileWork.DirCopy(FileWork.java:63)
at com.softeam.jbs.lesson6.FileWork.main(FileWork.java:131)
Exception in thread "main" java.lang.NullPointerException
at com.softeam.jbs.lesson6.FileWork.DirCopy(FileWork.java:51)
at com.softeam.jbs.lesson6.FileWork.DirCopy(FileWork.java:59)
at com.softeam.jbs.lesson6.FileWork.main(FileWork.java:131)
初次遇到这样的问题，源程序如下：
public void DirCopy(String path1,String path2)
{
File f3=new File(path1);
String fname=f3.getName();
String pathname=path2+f3.separator+fname;
File f33=new File(pathname);
f33.mkdirs();
//若目录中还有子目录或则其他文件
File[] s=f3.listFiles();
for(int i=0;i<s.length;i++)
{
String dname=s[i].getName();
String path1name=path1+fname+s[i].separator+dname;
String path2name=pathname+s[i].separator+dname;
if(s[i].isDirectory())
{
DirCopy("path1name","path2name");
}
else if(s[i].isFile())
{
FileCopy("path1name","path2name");
}
}
}
怎么办啦？？？？？呜呜~
