Hey Folks thanks in advance

I am new to coding.

Can you please help me with some pdf's for Apex Trigger & Visual Force. I am looking for a step by step Apex for dummies", or something that can walk me through all of the available components one by one and same for Visual Force

Regards'
Ehtesham 

Thank you in Advance.
 
I am salesforce certified system administrator. My question is that I want to learn Apex Trigger & Visual Force. However I am from non-programming background. So in order to learn apex trigger and visual force do I need to also learn C, C++, Java core & Java advanced. Please help me with the same. What i need to learn in order to understand.
 
Regards
Ehtesham Qureshi