Measure distance and display on 7 segments LED

Other Hardware Sensors
1

I'm new to this forum. I just purchased the Arduino Uno R3, HC-SR04 ultrasonic sensor and Max7219 seven segments LED. The project I'm working on is to measure distance in inches and display on 7 segments LED, I have some questions below please help:

  1. What is the first thing I need to do?
  2. Are there other parts I need?
  3. Are there codes available?

Regards,
Gazoo

2

To get distance: New Ping Library

http://playground.arduino.cc/Code/NewPing

To display on the Max7219 display:

http://playground.arduino.cc/Main/LEDMatrix