[Java] ローカルアドレスの取得１

●ローカルアドレスの取得１
getHostName()
getHostAddress()
getAddress()
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import java.net.*;

public class IPAddress {

	public static void main(String args[]) {
		//
		try {
			InetAddress ias[] = InetAddress.getAllByName("localhost");
			for (int i = 0; i < ias.length; i++) {
				System.out.println(ias[i].getHostName());
				System.out.println(ias[i].getHostAddress());
				byte bytes[] = ias[i].getAddress();
				for (int j = 0; j < bytes.length; j++) {
					if (j > 0) {
						System.out.print(".");
					}if(bytes[j] >= 0) {
						System.out.print(bytes[j]);
					}else{
						System.out.print(bytes[j] + 256);
					}
				}
				System.out.println("");
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

}
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