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http://www.hackerschool.org/HS_Boards/zboard.php?id=Free_Board&no=37778 [복사]
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class PingHosts {
public static void main(String[] args) {
for (int i = 1; i < 256; i++) {
String cmd = "ping -c 1 127.0.0." + i;
try {
Process process = Runtime.getRuntime().exec(cmd);
BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
String line;
while ((line = reader.readLine()) != null) {
if (line.contains("from")) {
System.out.println(line);
}
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
파이썬이 더 좋네... ㅜㅠ |
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