I'm very passionate about robots from my childhood.I'm a java developer. I love sci-fi movies.I have a little bit knowledge in embedded systems and electronics. My ambition is to build a robot like Jarvis (In Iron Man Movie).Which is a voice controlled robot.I would like to implement that in my house as a home automation system.It would take voice as input and take appropriate action.. Please help me to do this. Any kind of help is appreciated..
As it has already been pointed out, this is such a broad topic, it's almost impossible to answer it... People do entire doctoral thesis for years on "just" one aspect like speech recognition!!
But here is what you could do:
1) get a Raspberry Pi for the brain. You'll have to learn how to use Linux and a programming language like Python
2) get a cheap robotic arm: this one has been reverse-engineered before and you can find all the code on the web to control it with the raspberry pi
3) add a microphone and a little speaker and use the google Speech API for voice recognition
When you get there, you'll be where most hobbyist can get too easily without needing a lab or expensive equipment. Many people have done very similar projects, just google it, look on YouTube.