Android WifiManager - to HEX or not to HEX

I'm attempting to connect to wifi using Android programatically however when I input my WEP key in Hex - Logcat states it's too long. When I attempt to use plaintext - it states it is too short (and never connects). When I type it in manually outside the app I've built (by simply typing the password: superman) it connects!

P.S.

I'm attempting to use the following StackOverflow example:

How do I connect to a specific Wi-Fi network in Android programmatically?

With Hex:

    String networkSSID = "ANDRE-PC_NETWORK";
    String networkPass = "73:75:70:65:72:6d:61:6e";

LOGCAT:

04-04 12:12:13.643: E/wpa_supplicant(594): Line 0: Too long WEP key 0 '"73:75:70:65:72:6d:61:6e"'.
04-04 12:12:13.643: E/WifiConfigStore(479): failed to set wep_key0: "73:75:70:65:72:6d:61:6e"
04-04 12:12:13.793: I/ActivityManager(479): Displayed com.nfc.linked/.Connect: +855ms
04-04 12:12:16.283: W/GAV2(3422): Thread[Service Reconnect,5,main]: Connection to service failed 1

Without Hex:

  String networkSSID = "ANDRE-PC_NETWORK";
  String networkPass = "superman";

LOGCAT:

04-04 12:23:10.913: E/wpa_supplicant(594): Line 0: Invalid WEP key length 8 - this network block will be ignored

SOURCE:

import java.util.List;

import android.app.Activity;    
import android.net.wifi.WifiConfiguration;
import android.net.wifi.WifiManager;
import android.os.Bundle;
import android.util.Log;
import android.content.Context; 

public class Connect extends Activity  {


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.connect);
        String networkSSID = "ANDRE-PC_NETWORK";
        String networkPass = "superman";

        WifiConfiguration conf = new WifiConfiguration();
        conf.SSID = "\"" + networkSSID + "\"";   //ssid must be in quotes


        conf.wepKeys[0] = "\"" + networkPass + "\""; 
        conf.wepTxKeyIndex = 0;
        conf.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);
       conf.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.WEP40); 

        conf.preSharedKey = "\""+ networkPass +"\"";

        conf.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);

        WifiManager wifiManager = (WifiManager)getSystemService(WIFI_SERVICE); 
        wifiManager.addNetwork(conf);

        List<WifiConfiguration> list = wifiManager.getConfiguredNetworks();
        for( WifiConfiguration i : list ) {
            if(i.SSID != null && i.SSID.equals("\"" + networkSSID + "\"")) {
                 wifiManager.disconnect();
                 wifiManager.enableNetwork(i.networkId, true);
                 wifiManager.reconnect();                

                 break;
            }           
         }

    }}

Try:

String networkPass = "73757065726d616e";