Forge 1.9 Registry examples

ModObjects.java

// Block

Block myBlock = new Block(Materials.ROCK);
GameRegistry.register(myBlock.setRegistryName("myBlock"));

// Block with inventory Item

Block myBlock = new Block(Materials.ROCK);
GameRegistry.register(myBlock.setRegistryName("myBlock"));
GameRegistry.register(new ItemBlock(myBlock).setRegistryName(myBlock.getRegistryName());

// Item
Item myItem = new Item();
GameRegistry.register(myItem.setRegistryName("myItem"));

// Potion
Potion myPotion = new Potion(false, 0);
GameRegistry.register(myPotion.setRegistryName("myPotion"));

// Enchantment
Enchantment myEnchant = new Enchantment(Enchantment.Rarity.COMMON, EnumEnchantmentType.ALL, new EntityEquipmentSlot[]{EntityEquipmentSlot.MAINHAND});
GameRegistry.register(myEnchant.setRegistryName("myEnchant"));