BlockRiot.java:
package net.minecraft.src;

import java.util.Map;
import java.util.Random;
import net.minecraft.client.Minecraft;

// Referenced classes of package net.minecraft.src:
//            World, ItemStack, KeyBinding, EntityPlayer,
//            GuiScreen, RenderBlocks, Block, IBlockAccess,
//            IInventory

public class BlockRiot extends Block
{

    protected BlockRiot(int i, int j)
    {
    	super(i,j,Material.wood);
    }
    public int quantityDropped(Random random)
    {
    	if(random.nextInt(6)== 0)
    	{
    		return 2;
    	}else
    	{
    		return 1;
    	}
    }
    public boolean blockActivated(World world, int i, int j, int k, EntityPlayer entityplayer)
    {
        if (world.multiplayerWorld)
        {
            return true;
        }
        else
        {
            entityplayer.displayWorkbenchGUI(i, j, k);
            return true;
        }
    }


}

mod_riot.java:
package net.minecraft.src;
import java.util.Random;


public class mod_riot extends BaseMod
{
	public static final Block blockriot = new BlockRiot(200, 0).setHardness(0.9F).setResistance(1F).setBlockName("Riot-Inducing Block");
	public static final Item riotstick = new ItemSword(3333,EnumToolMaterial.RIOT).setItemName("riot stick");

	public mod_riot()
	{

	}

	public String Version()
	{
		return "Tutorial";
	}

	public String getVersion()
	{
		return "1.0.0";
	}

	public void load()
	{
		//icon index
		blockriot.blockIndexInTexture = ModLoader.addOverride("/terrain.png", "/icons/blkr.png");
		riotstick.iconIndex = ModLoader.addOverride("/gui/items.png", "/icons/RS.png");
		//recipes

		ModLoader.AddRecipe(new ItemStack(blockriot,1), new Object[]{
			"**", Character.valueOf('*'), Block.dirt
		});
		ModLoader.AddRecipe(new ItemStack(riotstick,1),new Object[]{
			"*","*","*", Character.valueOf('*'), Block.dirt
		});
		//Names
		ModLoader.AddName(blockriot,  "Riot-Inducing Block");
		ModLoader.AddName(riotstick, "Riot Stick");
		//Registers
		ModLoader.RegisterBlock(Blkr);
	}
}