IO流，求解答
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
public class TransStreamDemo {
/**
* @param args
* @throws IOException
*/
public static void main(String[] args) throws IOException {
InputStream in = System.in;
InputStreamReader isr = new InputStreamReader(in);
BufferedReader bufr = new BufferedReader(isr);
String line = null;
while((line=bufr.readLine())!=null){
if("over".equals(line))
break;
System.out.println(line.toUpperCase());
}
}
}
