帮助查看一下下面一段代码

[rbaidu]

学习java的io，从书上摘抄一段代码调试运行，代码如下：

import java.io.*;

class CopyMaker
{
String sourceName,destName;
BufferedReader source;
BufferedWriter dest;
String line;

private boolean openFiles()
{
try
{
source=new BufferedReader(new FileReader(sourceName));
}
catch (IOException iox)
{
System.out.println("Problem opening "+sourceName);
return false;
}

try
{
dest=new BufferedWriter (new FileWriter (destName));
}
catch (IOException iox)
{
System.out.println("Problem opening "+destName);
return false;
}
return true;
}

private boolean copyFiles()
{
try
{
line=source.readLine();
while(line!=null)
{
dest.write(line);
dest.newLine();
line=source.readLine();
}
}
catch (IOException iox)
{
System.out.println("Problem reading or writing");
return false;
}
return true;
}

private boolean closeFiles()
{
boolean retVal=true;
try
{
source.close();
}
catch (IOException iox)
{
System.out.println("Problem closing "+sourceName);
retVal=false;
}

try
{
dest.close();
}
catch (IOException iox)
{
System.out.println("Problem closing "+destName);
retVal=false;
}
return retVal;
}

public boolean copy(String src,String dst)
{
sourceName=src;
destName=dst;
return openFiles()&©Files()&&closeFiles();
}
}

public class File1
{
public static void main(String[] args)
{
new CopyMaker().copy("f:/Hello.txt","f:/CopyHello.txt");
}
}
结果显示Problem opening f:/Hello.txt，请问为什么？

[rypgood]

没错啊,我试了你的代码,运行没错,copy成功了
关键是你有没有f这么个盘,f盘下面有没有Hello.txt和CopyHello.txt两个文件
你可以自己试着,在f盘下面建立Hello.txt和CopyHello.txt两个文件,并且在Hello.txt里面写点东西
运行程序之后再看CopyHello.txt的内容

[rbaidu]

你说得对，我刚才摸索半天才想起来自己用的是F盘，刚学java，不知道连盘符也要区分大小写，只要有Hello.txt这个文件就行了，后面那个可以自动创建。非常感谢！