Dynamic array of Java: Simple application of ArrayList (add and revise)

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ArrayList is the legendary dynamic array!

Let's create a test class with the following code:

package case0000014;import java.util.arraylist;public class test {     public static void main (String[] args)  {         arraylist lis = new arraylist ();        &NBSP;SYSTEM.OUT.PRINTLN ("add Mode");         lis.add ("A");         lis.add ("B");         lis.add ("C");         lis.add ("D");         Lis.add ("E");         //cycle out See          for  (Int i = 0; i < lis.size ();  i++)  {             String result =  (String)   Lis.get (i);    &nbsP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;SYSTEM.OUT.PRINTLN (Result);         }        system.out.println ("Delete method");         //Delete Method One:         lis.remove ("a");         //Delete Mode two:         Lis.remove (0);         //cycle out See          for  (Int i = 0; i < lis.size ();  i++)  {             String result =  (String)   Lis.get (i);             system.out.println (result);         }         System.out.println ("modification Method");    &nBsp;    lis.set (2,  "F");         //loop out and see         for  (int i = 0; i <  Lis.size ();  i++)  {            string  result =  (String)  lis.get (i);           &NBSP;&NBSP;SYSTEM.OUT.PRINTLN (Result);        }         system.out.println ("Way to find");         // Gets the subscript         String result =  (String) of the dynamic array  lis.get ( 0);         system.out.println (result);     }}

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Dynamic array of Java: Simple application of ArrayList (add and revise)