remove index in java code example

Example 1: java arraylist remove

//create ArrayList
ArrayList<String> arrayList = new ArrayList<String>();
//add item to ArrayList
arrayList.add("item");
//check if ArrayList contains item (returns boolean)
System.out.println(arrayList.contains("item"));
//remove item from ArrayList
arrayList.remove("item");

Example 2: ArrayList remove(int index) method in java

import java.util.ArrayList;
public class ArrayListRemoveIndexMethodExample
{
   public static void main(String[] args)
   {
      ArrayList<Integer> al = new ArrayList<Integer>(5);
      al.add(56);
      al.add(29);
      al.add(76);
      al.add(94);
      System.out.println("ArrayList size: " + al.size());
      for(Integer number : al)
      {
         System.out.println("Number: " + number);
      }
      // removing element at third position
      al.remove(2);
      System.out.println("ArrayList size after using remove(int index) method: " + al.size());
      // printing all elements in list
      for(Integer number : al)
      {
         System.out.println("Number: " + number);
      }
   }
}