Reading into an array from a txt file - c

Question

So, I'm trying to get my program to read into an array of structs from a text file, and it compiles okay, but doesnt appear to actually be reading in the values?.. and I have no idea why. This is the relevant part of the code:
typedef struct Planet
{
char Planet_Name[30];
double Fuel;
double Velocity;
double Height;
double Gravity;
int Maximum_Thrust;
double Difficulty;
}Planet;
//read the Planets from a file
FILE* inputFile = fopen("Planets.txt", "r");
if(inputFile == NULL)
{
perror("Error. File unavailable");
exit(1);
}
for(j=0; j<10; j++)
{
fscanf("%29s %lf %lf %lf %lf %d %lf", SolarSystem[j].Planet_Name,
SolarSystem[j].Fuel, SolarSystem[j].Velocity,
SolarSystem[j].Height, SolarSystem[j].Gravity,
SolarSystem[j].Maximum_Thrust, SolarSystem[j].Difficulty);
}
printf("Please select a planet by entering the corresponding number:
Mercury[0], Venus[1], Earth[2], Moon[3], Mars[4], Jupiter[5], Saturn[6],
Uranus[7], Neptune[8]\n");
scanf("%d",&PlanetNum);
printf("You have chosen %s", SolarSystem[PlanetNum].Planet_Name);
This is the txt file (Title: Planets.txt)
Mercury 120 50 500 12.1 30 2
Venus 120 50 500 29.1 30 6
Earth 120 50 500 32.2 30 7
Moon 120 15 50 5.3 30 2
Mars 120 50 500 12.2 30 4
Jupiter 120 50 500 81.3 30 10
Saturn 120 50 500 34.3 30 8
Uranus 120 50 500 28.5 30 5
Neptune 120 50 500 36.6 30 9
Pluto 120 50 500 2.03 30 1
Except when it runs that final printf, it doesn't actually print anything, nor does it store any data in the structs (when its called later it's all zeroes).
Ideas?

Answer 1

The mistake is with your fscanf function . You have to provide FILE pointer (inputFile This context) as first argument and & operator(address of Similar to scanf function) in front of scanning integer and float.
Try this modified fscanf code :-
fscanf(inputFile,"%s%lf%lf%lf%lf%d%lf",SolarSystem[j].Planet_Name,&SolarSystem[j].Fuel, &SolarSystem[j].Velocity, &SolarSystem[j].Height, &SolarSystem[j].Gravity,&SolarSystem[j].Maximum_Thrust, &SolarSystem[j].Difficulty);