what is arraylist java code example

Example 1: how to import an arraylist in java

import java.util.ArrayList;

Example 2: java arraylist

List<String> expenseTypeList = new ArrayList<>();
        expenseTypeList.add("GENERAL");
        expenseTypeList.add("PURCHASE");
        expenseTypeList.add("PROJECT");

Example 3: arraylist in java

Size is dynamic
Only supports objects
not syncronized
array based class