Texture also applying to separated object

Question

I am working on creating a hammer in Blender, but I am having a problem. I separated the hammer and the handle into two separate objects, but when I apply textures to one of the items, it applies the texture to both objects. I used P and then selection to separate the two pieces.

Answer 1

You still have the same material on both objects. You can create a new material, if you need an entirely different material.

Or click on the plus button, to make a new material from the current material. Then there will be two separate materials for your two objects.
Documentation about materials.