Write a Java program to demonstrate arraylist operations.
import java.util.*;
class ArrayListDemo {
public static void main(String args[]) {
//Create an array list.
ArrayList<String> al = new ArrayList<String>();
System.out.println("Initial size of al: " + al.size());
//Add elements to the array list.
al.add("C");
al.add("A");
al.add("E");
al.add("B");
al.add("D");
al.add("F");
al.add(1, "A2");
System.out.println("Size of al after additions: " + al.size());
//Display the array list.
System.out.println("Contents of al: " + al);
//Remove elements from the array list.
al.remove("F");
al.remove(2);
System.out.println("Size of al after deletions: " +
al.size());
System.out.println("Contents of al: " + al);
}
}
C:\>javac ArrayListDemo.java
C:\>java ArrayListDemo
Initial size of al: 0
Size of al after additions: 7
Contents of al: [C, A2, A, E, B, D, F]
Size of al after deletions: 5
Contents of al: [C, A2, E, B, D]