关于realLine()

public class 控制台输入 {
public static String readLine(){
StringBuffer response=new StringBuffer;
try{
BufferedInputStream buff=new BufferedInputStream
(System.in);
int in=0;
char inChar;
do{
in=buff.read();
inChar=(char)in;
}while((in!=-1)&(inChar!='\n'));
buff.close();
return response.toString();
}catch(IOException e){
System.out.println("Exception: "+e.getMessage());
return null;
}
}
public static void main(String args[]){
System.out.print("What is your name?");
String input=控制台输入.readLine();
System.out.print("Hello, "+input);
System.out.print("Hello, "+控制台输入.readLine());