ArrayList in java

// Demonstrate ArrayList. 
import java.util.*; 
class ArrayListDemo { 
public static void main(String args[]) { 
// create an array list 
ArrayList al = new ArrayList(); 
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); 
} 
}