7 segment display (beginner)

Projects Programming
1

Hello, I'm new to Arduino programming and I have bought a starter kit from ebay which includes some tutorials. However, currently I'm stuck with the 8 segment display programming part and the codes are:

/*
  1 Digital 8-Segment LED Display
  Display the number from 1-9
*/
byte Digital[10]={0xfc,0x60,0xda,0xf2,0x66,0xb6,0xbe,0xe0,0xfe,0xf6};//the character code for number 1-9
void setup()
{
  int i=2;
  for(i=2;i<10;i++)
  {
   pinMode(i,OUTPUT);
   digitalWrite(i,HIGH);
  }
}
void loop()
{
  int i=0;
  int j;
  //Display number 1-9
  for(i=0;i<10;i++)
  {  
    //for every number, send the character code to the digital pin
    for(j=0;j<8;j++)
   {  
    if(Digital[i]&1<<j)
    digitalWrite(9-j,LOW);
    else
    digitalWrite(9-j,HIGH);
    }
    delay(500);
  }
}

My problem is in looping part. I can't grasp on how the program works. I understand on the for and if function, but still can't get how the program works. I would please to like the explaination on the code.

2

Let this be a lesson on how to write code. Imagine that someone on the other end is trying to understand your code, and only has your code. Nothing else.

3

Of course I did that, but It doesn't work which then I refer to the tutorials given. Thanks anyway for your advice!