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Michel Hoogenboom
Courses Plus Student 1,640 PointsArray big enough 2 numbers
Declare an array of type float named math_constants. The array should be big enough to hold 2 numbers.
An array start at 0, so that is the first number right? 1 should be the second number.
Why is: float math_constants[1]; // 2 numbers Wrong? And: float math_constants[2]; //3 Numbers??? right?
It might be a newbie mistake, but its confusing me.
1 Answer
Joe Timmons
4,331 PointsHi Michael, No worries, it can be confusing at first. You are correct that when accessing an array, they do start at 0.
When you declare an array in Objective-C, you can specify the the actual number of memory addresses to create.
float math_constants[2]; //this declares you want two memory locations
math_constants[0] = 3.14; //accesses the first location
math_constants[1] = 11.7; //accesses the second location
Let me know if that helps clear up the difference between Accessing and Declaring arrays!
-Joe
Michel Hoogenboom
Courses Plus Student 1,640 PointsMichel Hoogenboom
Courses Plus Student 1,640 PointsThank you Joe, i now understand it.