Mastering Blockchain Programming with Solidity

Getter functions for state variables

If you have public state variables in your contract, the compiler will create getter functions for these automatically. Therefore, if you have already defined public state variables, you don't have to write getter functions explicitly for those variables. It isn't recommended to write getter functions for public state variables. 

However, if you have the array as a public state variable, then you can access a single element of that array by providing an index as a parameter to the function.

Let's look at the following GetterExample contract, where we have two public state variables, data and array:

contract GetterExample {    uint public data = 25;    uint[2] public array = [10,20];     //Overrides getter function ...