declare an array in C

  int arrayName[arraySize];

This code declares an array called “arrayName” in the C programming language. It is declared as an integer data type and given a size of “arraySize”. The size of the array determines how many elements can be stored inside it. This code does not initialize any values in the array. It simply allocates the memory size of the array, making it available for further use. It can be used to store almost any form of data, such as numbers, strings, or even objects. When declaring an array, it is important to make sure the size of the array is large enough to hold all the elements that need to be stored in it.