Basic Gui Template/Block File Code Snippet

Basic Gui File:

package net.minecraft.src;

import java.awt.image.BufferedImage;
import org.lwjgl.opengl.GL11;

public class GuiWhatever extends GuiScreen {
    public GuiWhatever()
    {
    }

    public void initGui() {
        controlList.clear();
    }

    public boolean doesGuiPauseGame()
    {
        return false;
    }

    public void onGuiClosed()
    {

    }

    public void drawScreen(int i, int j, float f)
    {
        drawDefaultBackground();
        drawGradientRect(20, 20, width - 20, height - 20, 0x60500000, 0xa0803030);
        drawRect(60, 60, width - 60, height - 60, 0xFF0000FF);
        drawCenteredString(fontRenderer, "Random", width / 2, 45, 0xffffff);
        super.drawScreen(i, j, f);
    }

}

---------------------------------------------------------------------------
Block File Code Snippet:

public void onBlockClicked(World world, int i, int j, int k, EntityPlayer entityplayer)
    {
    ModLoader.OpenGUI(entityplayer, new GuiWhatever());
    }