tcp example

src/kr/co/swh/lecture/network/tcp/TcpClient.java

 package kr.co.swh.lecture.network.tcp; 
 
+import java.io.BufferedWriter;
+import java.io.OutputStreamWriter;
 import java.io.PrintWriter;
 import java.net.InetAddress;
 import java.net.Socket;
  */
 public class TcpClient {
 	public static void main(String[] args) {
-		InetAddress ia = null;		// 접속할 서버의 주소를 저장할 변수
 		Socket sock = null;		// 서버에 접속할 소켓 변수
-		PrintWriter out = null;		// 테이터를 전송할  Write 변수
 		try{
-			// 서버 주소생성
-			ia = InetAddress.getByName("127.0.0.1");
 			// 서버 연결
-			sock = new Socket(ia, 9999);
+			sock = new Socket("127.0.0.1", 9999);
 			// 서버에 메세지 전송
-			out = new PrintWriter(sock.getOutputStream());
-			out.println("SWHAcademy\n");
-			out.flush();
+//			PrintWriter out = new PrintWriter(sock.getOutputStream()); // 테이터를 전송할  Write 변수
+//			out.println("SWHAcademy\n");
+//			out.flush();
+			
+			BufferedWriter w = new BufferedWriter(new OutputStreamWriter(sock.getOutputStream()));
+			w.write("SWHAcademy\n");
+			w.close();
+			
 			// 접속 끊기
 			sock.close();
 		}catch(Exception e){