Minecraft – Nether in creative

1. Zombie Pigmen aren't supposed to get damaged in daylight, but they do get damaged and will die from sunlight. (Pocket Edition is strange.)

2. Yep, you can still activate the nether reactor on Peaceful mode, which means the giant Netherrack room will still spawn. Although the Zombie Pigmen won't spawn since it's Peaceful mode, the various items that would normally spawn in the room will still spawn.

   The only time you can't activate the nether reactor is in Creative mode.

3. You only need the 4 gold blocks on the bottom of the reactor, which in total will cost you exactly (4 blocks)x(9 gold ingots/block) = 45 gold ingots.

4. If you activate it in Peaceful mode, there's not much to do except run around and collect the random items. But if you're fast enough, you can actually still retrieve the gold blocks you used, before the items start spawning.

   But on the other hand, if you're not on Peaceful, then you'll have to deal with the spawning Zombie Pigmen. The Netherrack room is easily breakable. However, after a short amount of time, the reactor causes the world to enter nighttime, so trying to expose the Zombie Pigmen to sunlight may not be a good idea.

   If you're sure you can handle the Zombie Pigmen, you can go ahead and try to fight them. But otherwise, you can make a quick escape by breaking down the walls, but the items inside will likely despawn at some point.

The Answer bellow relates to versions before Alpha 0.12.1, before the Nether was introduced. the Question asks about Alpha 0.9.5

Going by the Version History the End Portal Block was added in 0.9.0 and according to the history for the block they can not be used to access The End, probably because (to my knowledge) even in the current version of 0.10.4 (at the time of writing) for Pocket Edition...

• The Eye of Ender hasn't been added and neither has it's parent items, the Ender Pearl and Blaze Powder (because there is still no Nether and the Nether Reactor does not spawn Blaze Powder).

• The End itself does not exists in Pocket Edition

In the PC Edition. the End Portal Block (or Frame) is naturally generated inside Strongholds in the formation they need to be in order to be able to open a portal to The End (5x5 Square Ring)