import java.io.*;
class ReadFromFile
{
public static void main(String args[])
{
System.out.println("Please enter a directory that th file located in:");
StringBuffer stfDir = new StringBuffer();
while((char ch=(char)System.in.read())!='\n')
{
stfDir.appendChar(ch);
}
File dir=new File(stfDir.toString());
System.out.println("Please enter a filename that want to read:");
StringBuffer stfFilename = new StringBuffer();
while((char ch=(char)System.in.read())!='\n')
{
stfFilename.appendChar(ch);
}
File readFrom = new File(dir,stfFilename.toString());
if(readFrom.isFile()&&readFrom.canWrite()&&readFrom.canRead())
{
RandomAccessFile rafFile = new RandomAccessFile(readFrom,"rw");
while((rafFile.getFilePointer())<(rafFile.length()))
System.out.println(rafFile.readLine());
rafFile.close();
}
else
System.out.println("File cann't be read!");
}
}
各位老大，编译后出现一下错误，不知道怎么回事，帮帮我，谢谢！！
ReadFromFile.java:8: ')' expected
while((char ch=(char)System.in.read())!='\n')
^
ReadFromFile.java:12: illegal start of expression
File dir=new File(stfDir.toString());
^
ReadFromFile.java:15: ')' expected
while((char ch=(char)System.in.read())!='\n')
^
ReadFromFile.java:19: illegal start of expression
File readFrom = new File(dir,stfFilename.toString());
^
ReadFromFile.java:8: incompatible types
found : char
required: boolean
ReadFromFile.java:12: illegal start of expression
File dir=new File(stfDir.toString());
^
ReadFromFile.java:15: ')' expected
while((char ch=(char)System.in.read())!='\n')
^
ReadFromFile.java:19: illegal start of expression
File readFrom = new File(dir,stfFilename.toString());
^
ReadFromFile.java:8: incompatible types
found : char
required: boolean
while((char ch=(char)System.in.read())!='\n')
^
ReadFromFile.java:15: incompatible types
found : char
required: boolean
while((char ch=(char)System.in.read())!='\n')
^
ReadFromFile.java:20: cannot resolve symbol
symbol : variable readFrom
location: class ReadFromFile
if(readFrom.isFile()&&readFrom.canWrite()&&readFrom.canRead())
^
ReadFromFile.java:20: cannot resolve symbol
symbol : variable readFrom
location: class ReadFromFile
if(readFrom.isFile()&&readFrom.canWrite()&&readFrom.canRead())
^
ReadFromFile.java:20: cannot resolve symbol
symbol : variable readFrom
location: class ReadFromFile
if(readFrom.isFile()&&readFrom.canWrite()&&readFrom.canRead())
^
ReadFromFile.java:22: cannot resolve symbol
symbol : variable readFrom
location: class ReadFromFile
RandomAccessFile rafFile = new RandomAccessFile(readFrom
,"rw");
^
while((char ch=(char)System.in.read())!='\n')
