Cant get Minecraft armor textures to work

Question

I am very new to coding and all i am trying to do is make a minecraft mod. I am trying to add armors but I cant get the textures to work. here is my code and error in console:

package com.halo.halomod.armor;

import net.minecraft.client.renderer.texture.IIconRegister;
import net.minecraft.entity.Entity;
import net.minecraft.item.ItemArmor;
import net.minecraft.item.ItemStack;

import com.halo.halomod.halo;

public class TitaniumArmor extends ItemArmor {
    private String [] armourTypes = new Strenter code here`ing [] {"TitaniumHelmet", "TitaniumChestplate", "TitaniumLeggings", "TitaniumBoots"};


    public TitaniumArmor(ArmorMaterial armorMaterial, int renderIndex, int armourType) {
        super(armorMaterial, renderIndex, armourType);
    }

    @Override
    public String getArmorTexture(ItemStack stack, Entity entity, int slot, String layar){
        if(stack.getItem().equals(halo.TitaniumHelmet)|| stack.getItem().equals(halo.TitaniumChestplate)|| stack.getItem().equals(halo.TitaniumBoots)){
            return "halo:textures/armor/titanium1.png";
        }

        if(stack.getItem().equals(halo.TitaniumLeggings)){
            return "halo:textures/armor/titanium2.png"; 
        }
        else return null;
    }
    public void registerIconsRegister(IIconRegister reg){ 
        if(this == halo.TitaniumHelmet)
            this.itemIcon = reg.registerIcon("halo:Titanium Helmet");
        if(this == halo.TitaniumChestplate)
            this.itemIcon = reg.registerIcon("halo:Titanium Chestplate");
        if(this == halo.TitaniumLeggings)
            this.itemIcon = reg.registerIcon("halo:Titanium Leggings");
        if(this == halo.TitaniumBoots)
            this.itemIcon = reg.registerIcon("halo:Titanium Boots");
    }
}

Error in Console:

[15:53:29] [Client thread/ERROR]: Using missing texture, unable to load minecraft:textures/items/MISSING_ICON_ITEM_4103_TitaniumHelmet.png java.io.FileNotFoundException: minecraft:textures/items/MISSING_ICON_ITEM_4103_TitaniumHelmet.png at net.minecraft.client.resources.FallbackResourceManager.getResource(FallbackResourceManager.java:65) ~[FallbackResourceManager.class:?] at net.minecraft.client.resources.SimpleReloadableResourceManager.getResource(SimpleReloadableResourceManager.java:67) ~[SimpleReloadableResourceManager.class:?] at net.minecraft.client.renderer.texture.TextureMap.loadTextureAtlas(TextureMap.java:128) [TextureMap.class:?] at net.minecraft.client.renderer.texture.TextureMap.loadTexture(TextureMap.java:93) [TextureMap.class:?] at net.minecraft.client.renderer.texture.TextureManager.loadTexture(TextureManager.java:89) [TextureManager.class:?] at net.minecraft.client.renderer.texture.TextureManager.loadTickableTexture(TextureManager.java:71) [TextureManager.class:?] at net.minecraft.client.renderer.texture.TextureManager.loadTextureMap(TextureManager.java:58) [TextureManager.class:?] at net.minecraft.client.Minecraft.startGame(Minecraft.java:621) [Minecraft.class:?] at net.minecraft.client.Minecraft.run(Minecraft.java:931) [Minecraft.class:?] at net.minecraft.client.main.Main.main(Main.java:112) [Main.class:?] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_09] at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_09] at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_09] at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_09] at net.minecraft.launchwrapper.Launch.launch(Launch.java:134) [launchwrapper-1.9.jar:?] at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.9.jar:?] [15:53:29] [Client thread/ERROR]: Using missing texture, unable to load minecraft:textures/items/MISSING_ICON_ITEM_4106_TitaniumBoots.png java.io.FileNotFoundException: minecraft:textures/items/MISSING_ICON_ITEM_4106_TitaniumBoots.png at net.minecraft.client.resources.FallbackResourceManager.getResource(FallbackResourceManager.java:65) ~[FallbackResourceManager.class:?] at net.minecraft.client.resources.SimpleReloadableResourceManager.getResource(SimpleReloadableResourceManager.java:67) ~[SimpleReloadableResourceManager.class:?] at net.minecraft.client.renderer.texture.TextureMap.loadTextureAtlas(TextureMap.java:128) [TextureMap.class:?] at net.minecraft.client.renderer.texture.TextureMap.loadTexture(TextureMap.java:93) [TextureMap.class:?] at net.minecraft.client.renderer.texture.TextureManager.loadTexture(TextureManager.java:89) [TextureManager.class:?] at net.minecraft.client.renderer.texture.TextureManager.loadTickableTexture(TextureManager.java:71) [TextureManager.class:?] at net.minecraft.client.renderer.texture.TextureManager.loadTextureMap(TextureManager.java:58) [TextureManager.class:?] at net.minecraft.client.Minecraft.startGame(Minecraft.java:621) [Minecraft.class:?] at net.minecraft.client.Minecraft.run(Minecraft.java:931) [Minecraft.class:?] at net.minecraft.client.main.Main.main(Main.java:112) [Main.class:?] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_09] at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_09] at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_09] at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_09] at net.minecraft.launchwrapper.Launch.launch(Launch.java:134) [launchwrapper-1.9.jar:?] at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.9.jar:?] [15:53:29] [Client thread/ERROR]: Using missing texture, unable to load minecraft:textures/items/MISSING_ICON_ITEM_4104_TitaniumChestplate.png java.io.FileNotFoundException: minecraft:textures/items/MISSING_ICON_ITEM_4104_TitaniumChestplate.png at net.minecraft.client.resources.FallbackResourceManager.getResource(FallbackResourceManager.java:65) ~[FallbackResourceManager.class:?] at net.minecraft.client.resources.SimpleReloadableResourceManager.getResource(SimpleReloadableResourceManager.java:67) ~[SimpleReloadableResourceManager.class:?] at net.minecraft.client.renderer.texture.TextureMap.loadTextureAtlas(TextureMap.java:128) [TextureMap.class:?] at net.minecraft.client.renderer.texture.TextureMap.loadTexture(TextureMap.java:93) [TextureMap.class:?] at net.minecraft.client.renderer.texture.TextureManager.loadTexture(TextureManager.java:89) [TextureManager.class:?] at net.minecraft.client.renderer.texture.TextureManager.loadTickableTexture(TextureManager.java:71) [TextureManager.class:?] at net.minecraft.client.renderer.texture.TextureManager.loadTextureMap(TextureManager.java:58) [TextureManager.class:?] at net.minecraft.client.Minecraft.startGame(Minecraft.java:621) [Minecraft.class:?] at net.minecraft.client.Minecraft.run(Minecraft.java:931) [Minecraft.class:?] at net.minecraft.client.main.Main.main(Main.java:112) [Main.class:?] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_09] at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_09] at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_09] at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_09] at net.minecraft.launchwrapper.Launch.launch(Launch.java:134) [launchwrapper-1.9.jar:?] at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.9.jar:?] [15:53:29] [Client thread/ERROR]: Using missing texture, unable to load minecraft:textures/items/MISSING_ICON_ITEM_4105_TitaniumLeggings.png java.io.FileNotFoundException: minecraft:textures/items/MISSING_ICON_ITEM_4105_TitaniumLeggings.png at net.minecraft.client.resources.FallbackResourceManager.getResource(FallbackResourceManager.java:65) ~[FallbackResourceManager.class:?] at net.minecraft.client.resources.SimpleReloadableResourceManager.getResource(SimpleReloadableResourceManager.java:67) ~[SimpleReloadableResourceManager.class:?] at net.minecraft.client.renderer.texture.TextureMap.loadTextureAtlas(TextureMap.java:128) [TextureMap.class:?] at net.minecraft.client.renderer.texture.TextureMap.loadTexture(TextureMap.java:93) [TextureMap.class:?] at net.minecraft.client.renderer.texture.TextureManager.loadTexture(TextureManager.java:89) [TextureManager.class:?] at net.minecraft.client.renderer.texture.TextureManager.loadTickableTexture(TextureManager.java:71) [TextureManager.class:?] at net.minecraft.client.renderer.texture.TextureManager.loadTextureMap(TextureManager.java:58) [TextureManager.class:?] at net.minecraft.client.Minecraft.startGame(Minecraft.java:621) [Minecraft.class:?] at net.minecraft.client.Minecraft.run(Minecraft.java:931) [Minecraft.class:?] at net.minecraft.client.main.Main.main(Main.java:112) [Main.class:?] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_09] at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_09] at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_09] at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_09] at net.minecraft.launchwrapper.Launch.launch(Launch.java:134) [launchwrapper-1.9.jar:?] at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.9.jar:?] [15:53:29] [Client thread/INFO]: Created: 256x256 textures/items-

Answer 1

The problems are in your public void registerIconsRegister(IIconRegister reg) method:

Firstly, the method you're supposed to be overriding is defined as:

public void registerIcons(net.minecraft.client.renderer.texture.IconRegister register)

So that method isn't being called, and even if it were, all of your equal checks will fail:

if(this == halo.TitaniumHelmet)

As neither ItemArmor nor Item override Object.equals(Object obj), Java will perform memory reference checks which will all fail. Regardless, the registerIcons method should register all item icons, regardless of what metadata based sub-Items exist, so just remove the if statements entirely.