diff --git a/src/j3/Telnet.java b/src/j3/Telnet.java
index 91b5168..0d77516 100644
--- a/src/j3/Telnet.java
+++ b/src/j3/Telnet.java
@@ -2,6 +2,7 @@
 
 import java.io.BufferedInputStream;
 import java.io.BufferedReader;
+import java.io.DataInputStream;
 import java.io.InputStreamReader;
 import java.io.OutputStream;
 import java.net.Socket;
@@ -14,14 +15,14 @@
 		char[] cbuff = new char[1024];//配列の定義
 		Socket socket = null ;// サーバ接続用ソケット
 		OutputStream outstr = null;// データ出力用オブジェクト
-		BufferedReader din = null;// データ読み取り用オブジェクト
+		DataInputStream din = null;// データ読み取り用オブジェクト
 		boolean cont = true ;
 		// 指定のポートに対して,ソケットを作成します
 		// 入出力のストリームを作り,データ読み出しを準備します
 		try{
 			socket = new Socket(args[0], Integer.parseInt(args[1])) ;
 			outstr = socket.getOutputStream() ; //サーバへの送信用
-			din = new BufferedReader(new InputStreamReader(socket.getInputStream())) ;
+			din = new DataInputStream(socket.getInputStream()) ;
 		} catch (Exception e) {
 			System.err.println("Network error.") ;
 			System.exit(1) ;
@@ -44,10 +45,11 @@
 		cont = true ;
 		while (cont) {
 			try {
-				int n = din.read(cbuff);
+				int n = din.read(buff);
 				if (n > 0) {
 					System.out.println(n);
-					System.out.print(new String(cbuff)) ;
+					System.out.write(buff);
+//					System.out.print(new String(cbuff)) ;
 					System.out.flush();
 				}
 			}