import  。*;
class ReadWriteFile{
 public static void main(String[] args){
  try{
   
   File read = new File("c:\\A。
  txt");
   StringBuffer s=new StringBuffer();
      
   BufferedReader br = new BufferedReader(
         new FileReader(read));
         String temp = null;
     while((temp =  adLine()) != null){
       s。
  append(temp+"\r\n");
   }
      intln(s);
      ose();
   
  }catch(FileNotFoundException e){ //文件未找到
    intln (e);
  }catch(IOException e){
    intln (e);
  } 
 } 
}
import  。
  *;
class JavaStudent1
{
	public static void main(String[] args){
		String s=null;
		char[] c=null;
		
		File write = new File("c:\\B。
  txt");
		try{
			BufferedReader br=new BufferedReader(new InputStreamReader( ));
			s= adLine();
			BufferedWriter bw = new BufferedWriter(
			new FileWriter(write));
			bw。
  write(s);
			 ose();
						
		}catch(IOException e){
			 intln( tMessage());
		}
			}
};。