Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Apache License 

import java.net.InetAddress;

import java.net.UnknownHostException;

public class Main {
    /**
     * hostname from string to int
     * @param hostname
     * @return
     */
    public static int lookupHost(String hostname) {
        InetAddress inetAddress;
        try {
            inetAddress = InetAddress.getByName(hostname);
        } catch (UnknownHostException e) {
            return -1;
        }
        byte[] addrBytes;
        int addr;
        addrBytes = inetAddress.getAddress();
        addr = ((addrBytes[3] & 0xff) << 24) | ((addrBytes[2] & 0xff) << 16) | ((addrBytes[1] & 0xff) << 8)
                | (addrBytes[0] & 0xff);
        return addr;
    }
}