Question

I know how to show number random using this code below from 0 to 9.

number = arc4random() % 10;

but how about random for mathematic sign? I have +, -, x, / sign and i want to show it randomly.

Answer 1

int number = arc4random() % 4;
NSString *string = @"+,-,x,/";
NSLog(@"sign = %@", [[string componentsSeparatedByString:@","] 
objectAtIndex:number]);