帮我看看这段程序!

[hwansung]

import java.io.*;
class myinput
{
public static void main(String args[])
{
try
{
System.out.println("Enter Directory:");
char ch;
StringBuffer dirBuf = new StringBuffer();
while((ch=(char)System.in.read())!='\n')
dirBuf.append(ch);
System.out.println("Enter Filename:");
StringBuffer fileBuf = new StringBuffer();
while((ch=(char)System.in.read())!='\n')
fileBuf.append(ch);
File input = new File(dirBuf.toString(),fileBuf.toString());

if (input.isFile())
{
System.out.println("File Found!");
}
else
{
System.out.println("File not Found!");
}
}
catch(Exception e)
{
System.out.println("Error!");
}
}
}
如果能执行，请将结果贴出来，如果不能请帮我改一下

[knight_qmh]

import java.io.*;
class myinput
{
public static void main(String args[])
{
try
{
System.out.println("Enter Directory:");
char ch;
StringBuffer dirBuf = new StringBuffer();
while((ch = (char)System.in.read())!='\r')
dirBuf.append(ch);
System.out.println("Enter Filename:");
System.in.read();
StringBuffer fileBuf = new StringBuffer();
while((ch=(char)System.in.read())!='\r')
fileBuf.append(ch);
File input = new File(dirBuf.toString(),fileBuf.toString());

if (input.isFile())
{
System.out.println("File Found!");
}
else
{
System.out.println("File not Found!");
}
}
catch(Exception e)
{
System.out.println("Error!");
}
}
}

[hwansung]

能告诉我为什么改这两个地方吗？
1.'\n'改为'\r'
2.加了一句'System.in.read()'

[hwansung]

第一个改动我已经知道原因了，我以为换行符就是回车符，呵呵

[crm2000]

回车的时候伴随着'\r\n'两个字符的输入，所以后面加System.in.read()将后面那个\n过滤掉。