java之IO流--BufferedReader

  FileReader fr = new FileReader("f:\\TestJava.java");
   BufferedReader bf = new BufferedReader(fr);

//这里进行读取

int b;
   while((b=bf.read())!=-1){
    System.out.println(bf.readLine());
   }

String valueString = null;
   while ((valueString=bf.readLine())!=null){
       System.out.println(valueString);
   }

public class A1 {
 /**
  */
 public static void main(String[] args) {
  InputStreamReader reader = new InputStreamReader(System.in);
  BufferedReader br = new BufferedReader(reader);
  String buffer = null;
  try {
   while ((buffer = br.readLine()) != null) {
    if (buffer.equals("exit")) {
     System.exit(1);
    }
    System.out.println("输入内容为：" + buffer);
   }
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
 }
}