Arrays
In C an array is a variable that can store multiple values of the same data type. When declaring it you must define how many values the array can hold. You can then access particular elements by using indexes which start at 0. In C array out of bounds, meaning the index is not in the range of $0-length-1$, can not be checked by the compiler and therefore does not throw an error. An out of bounds exception can cause the program to crash or unexpected behavior. Arrays are initialized with the default value of that type but you can also specify specific values when initializing.