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khJavaStudy
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java0920_network
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Java228_network.java
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Java228_network.java
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package java0920_network;
import java.net.InetAddress;
import java.net.UnknownHostException;
/*
* 네트워크 : 두 대 이상의 컴퓨터를 케이블로 연결하여 구성하는 기능이다.
* 클라이언트/서버 : 컴퓨터간의 관계를 역할로 구분하는 개념이다.
* 서버 : 서비스를 제공하는 컴퓨터이다.
* 클라이언트 : 서비스를 사용하는 컴퓨터이다.
* 서비스 : 서버가 클라이언트로부터 요청받은 작업을 처리하여 그 결과를 제공하는 개념이다.
*
* 네트워크에 관련된 정보 : java.net.*;
* InetAddres : ip주소를 다루기 위한 클래스이다.
*/
public class Java228_network {
public static void main(String[] args) {
try {
InetAddress ip = InetAddress.getByName("daum.net");
// host domain name 리턴
System.out.printf("getHostName(): %s\n", ip.getHostName());
// host ip 리턴
System.out.printf("getHostAddress(): %s\n", ip.getHostAddress());
} catch (UnknownHostException e) {
e.printStackTrace();
}
}
}
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