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Java.util.ArrayList.add() Method in Java

Below are the add() methods of ArrayList in Java:

  1. boolean add(Object o) : This method appends the specified element to the end of this list. Parameters: object o: The element to be appended to this list. Exception: NA




    // Java code to illustrate add(Object o)

    import java.io.*;

    import java.util.ArrayList;

    public class ArrayListDemo {

    public static void main(String[] args)

    {

    // create an empty array list with an initial capacity

    ArrayList<Integer> arrlist = new ArrayList<Integer>(5);

    // use add() method to add elements in the list

    arrlist.add(15);

    arrlist.add(20);

    arrlist.add(25);

    // prints all the elements available in list

    for (Integer number : arrlist) {

    System.out.println("Number = " + number);

    }

    }

    }