arraylist remove object

ArrayList remove(Object o) method in java

import java.util.ArrayList;
public class ArrayListRemoveObjectExample
{
   public static void main(String[] args)
   {
      // create an empty ArrayList
      ArrayList<String> names = new ArrayList<String>(7);
      names.add("Bharat");
      names.add("Chetan");
      names.add("Dinesh");
      names.add("Bharat");
      names.add("Falguna");
      names.add("Dinesh");
      names.add("Bharat");
      System.out.println("ArrayList before using remove(Object o) method: ");
      for(int a = 0; a < 7; a++)
      {
         System.out.println(names.get(a).toString());
      }
      // removing first occurrence of "Bharat" and "Dinesh"
      names.remove("Bharat");
      names.remove("Dinesh");
      System.out.println("ArrayList after using remove(Object o) method: ");
      for(int a = 0; a < 5; a++)
      {
         System.out.println(names.get(a).toString());
      }
   }
}

Posted by: Guest on October-30-2020

Source

import java.util.ArrayList; public class ArrayListRemoveObjectExample { public static void main(String[] args) { // create an empty ArrayList ArrayList<String> names = new ArrayList<String>(7); names.add("Bharat"); names.add("Chetan"); names.add("Dinesh"); names.add("Bharat"); names.add("Falguna"); names.add("Dinesh"); names.add("Bharat"); System.out.println("ArrayList before using remove(Object o) method: "); for(int a = 0; a < 7; a++) { System.out.println(names.get(a).toString()); } // removing first occurrence of "Bharat" and "Dinesh" names.remove("Bharat"); names.remove("Dinesh"); System.out.println("ArrayList after using remove(Object o) method: "); for(int a = 0; a < 5; a++) { System.out.println(names.get(a).toString()); } } }

//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");

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