Collection Framework;-Array List

 An ArrayList is a dynamic data structure,  items can be added and removed from the list.

 ArrayList implements List interface it maintains insertion order of element and allow duplicates.

import java.util.ArrayList; 
 
public class Demo { 
 
    public static void main(String[] args) throws IOException { 
 
        
 
        ArrayList<String> myArr = new ArrayList<String>();
        myArr.add("one");
        myArr.add("two");
        myArr.add("threeo");
        myArr.add("four");
        myArr.add("five");
        myArr.add("six");
       
 
        
        System.out.println("Enter numbers:");
        String name = userInput.readLine();
        Integer nameLength = name.length();
        if (nameLength == 0) 
        { 
            System.out.println("empty number entered");
            return;
        } 
 
        Integer vacationIndex = nameLength % myArr.size();
 
        System.out.println(" "+number+", iis "nameLength + " charact+ myArr.get(vacationIndex));
    } 
} 

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