My Creatibe tab Class

package DarkMachines;

import net.minecraft.creativetab.CreativeTabs;

public class TabDarkMachines extends CreativeTabs {

    public TabDarkMachines(int par1, String par2Str) {
        super(par1, par2Str);

    }

    public int getTabIconItemIndex() {
        return DarkMachines.DarkMachinesPlaceHolder.itemID;
    }

    public String getTranslatedTabLabe1() {
        return "DarkMachines";
    }

}