java接收中文输入并正常显示

class chinese 
{
 public static void main(String[] args) 
 {
    byte []by=new byte[64];
                 String temp="";
                 int len=0;
                 try {
                     len=System.in.read(by);   
                     byte []byt=new byte[len];
                     for (int i = 0; i < len; i++) {
                         byt[i]=by[i];
                     }
                                 temp=new String(byt);

                              //   temp=new String(temp.getBytes("UTF8 "),"UTF8"); 
                                 } 
                                 catch (Exception ex) {
                     System.out.println("ex:"+ex.getMessage());
                 } 
                                 System.out.print(temp);
 }
}