List is a part of a Collection in dart it is used to store multiple data or similar data types whether it can be in integer, boolean, or String or user-defined data type.

Let me explain with an example. I am storing students roll number But it can store only 1 student’s  data

int rollNo=31;

Suppose I want to store roll numbers of all the students, we cannot create a number of variable names rollNo1,rollNo2 and so on.  So here I am going to use a List, List is used to store many values of similar data types. Here I can put all the students roll a number of any number of lengths.

List<int> rollNoList=[31,34,36,40];

The number of items in the list a dynamic nature which means you can add or remove elements at any point of execution. In example you can see there are 4 items but any programming languages always count it as 0-3 i.e the index of will be 0, not 1, but the length same- 4.

If I want to access an element from the list I have to mention the list variable name with an index number, so to get 34 from the List the sentence will be:

 int rollNo=rollNoList[1];