import java.io.*;
class Input
{
    public static void main(String args[]) throws IOException
    { byte buf []=new byte[20];
        try
            {
                System.in.read(buf);
            }
            
        catch(IOException e)
            {
                System.out.println(e.toString());
            }
            
    String str=new String(buf,0);
    System.out.println(str);                                
        }
    
        
}


jdk1.6.0_05
编译时警告  String(byte[],int) 已过期，如何更改？