虚心请教是什么原因导致的错误
工程中分别建立读写文件的类
public class ReadFile{
public static String read()
{
try{
File read = new File("c:\\djym.txt");
BufferedReader br = new BufferedReader(new FileReader(read));
String temp = null;
temp = br.readLine();
br.close();
return temp;
}
catch(FileNotFoundException e){ //文件未找到
System.out.println (e);
return null;
}
catch(IOException e){
System.out.println (e);
return null;
}
}
}
public class WriteFile{
public static void write(String str){
try{
File write = new File("c:\\djym.txt");
BufferedWriter bw = new BufferedWriter(
new FileWriter(write));
while(str != null){
//写文件
bw.write(str); //只适用Windows系统
}
bw.close();
return;
}
catch(FileNotFoundException e)
{ //文件未找到
System.out.println (e);
return;
}
catch(IOException e)
{
System.out.println (e);
return;
}
}
}