W3Schools
w3schools.com › java › ref_arraylist_remove.asp
Java ArrayList remove() Method
If the list contains integers and you want to delete an integer based on its value you will need to pass an Integer object. See More Examples below for an example. ... T refers to the data type of items in the list. Remove an integer from the list by position and by value: import java.util.ArrayList; public class Main { public static void main(String[] args) { ArrayList<Integer> list = new ArrayList<Integer>(); list.add(5); list.add(8); list.add(9); list.add(1); list.remove(Integer.valueOf(1)); // Remove by object list.remove(1); // Remove by index System.out.println(list); } }
W3Schools
w3schools.com › java › ref_arraylist_removeall.asp
Java ArrayList removeAll() Method
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Javaprogramto
javaprogramto.com › 2019 › 04 › how-to-remove-element-from-arraylist.html
How to remove an element from ArrayList in Java? JavaProgramTo.com
August 4, 2019 - In the below example program, We are passing the wrapper integer objects to remove the actual values of 1 and 2 from arraylist. package examples.java.w3schools.arraylist; import java.util.ArrayList; import java.util.List; public class ArrayListRemove { public static void main(String[] args) { // Creating arraylist List ·
DigitalOcean
digitalocean.com › community › tutorials › java-list-remove-methods-arraylist-remove
How To Use remove() Methods for Java List and ArrayList | DigitalOcean
September 9, 2025 - If the object is null and list doesn’t support null elements, NullPointerException is thrown. UnsupportedOperationException is thrown if the list implementation doesn’t support this method. Let’s look into some examples of remove() methods. ... List<String> list = new ArrayList<>(); list.add("A"); list.add("B"); list.add("C"); list.add("C"); list.add("B"); list.add("A"); System.out.println(list); String removedStr = list.remove(1); System.out.println(list); System.out.println(removedStr);
TutorialsPoint
tutorialspoint.com › java › util › arraylist_remove_object.htm
Java.util.ArrayList.remove(Object) Method
The java.util.ArrayList.remove(Object) method removes the first occurrence of the specified element from this list, if it is present.If the list does not contain the element, it is unchanged.
BeginnersBook
beginnersbook.com › 2013 › 12 › java-arraylist-removeobject-method-example
Java ArrayList remove(Object obj) Method example
June 1, 2024 - Lets say we have an arraylist of type integer then using list.remove(1) will remove the element at the position 1.
W3Schools
w3schools.com › java › tryjava.asp
Remove an item from an ArrayList
The W3Schools online code editor allows you to edit code and view the result in your browser
Java67
java67.com › 2014 › 03 › 2-ways-to-remove-elementsobjects-from-ArrayList-java.html
2 Ways to Remove Elements/Objects From ArrayList in Java [Example] | Java67
... There are two ways to remove objects from ArrayList in Java, first, by using the remove() method, and second by using Iterator. ArrayList provides overloaded remove() method, one accepts the index of the object to be removed i.e.
W3Resource
w3resource.com › java-tutorial › arraylist › arraylist_remove-object-o.php
Java ArrayList.remove(Object o) Method
August 19, 2022 - Java Platform: Java SE 8 · Syntax: remove(Object o) Parameters: Return Value: true if this list contained the specified element. Return Value Type: boolean · Pictorial presentation of ArrayList.remove(Object o) Method · Example: ...
W3Resource
w3resource.com › java-tutorial › arraylist › arraylist_remove.php
Java arraylist remove Method - w3resource
August 19, 2022 - Java ArrayList.remove(int index) Method with example: The remove() method is used to remove an element at a specified index from ArrayList. Shifts any subsequent elements to the left (subtracts one from their indices).
How to do in Java
howtodoinjava.com › home › collections framework › java arraylist › remove element(s) from arraylist in java
Remove Element(s) from ArrayList in Java
August 7, 2023 - ArrayList<String> namesList = new ... //list size is 2 · Program output. ... The remove(Object) method removes the first occurrence of the specified element E in this list....
Top answer 1 of 16
51
ArrayList removes objects based on the equals(Object obj) method. So you should implement properly this method. Something like:
public boolean equals(Object obj) {
if (obj == null) return false;
if (obj == this) return true;
if (!(obj instanceof ArrayTest)) return false;
ArrayTest o = (ArrayTest) obj;
return o.i == this.i;
}
Or
public boolean equals(Object obj) {
if (obj instanceof ArrayTest) {
ArrayTest o = (ArrayTest) obj;
return o.i == this.i;
}
return false;
}
2 of 16
39
If you are using Java 8 or above:
test.removeIf(t -> t.i == 1);
Java 8 has a removeIf method in the collection interface. For the ArrayList, it has an advanced implementation (order of n).
W3Schools
w3schools.com › java › ref_arraylist_removeif.asp
Java ArrayList removeIf() Method
How Tos Add Two Numbers Swap Two Variables Even or Odd Number Reverse a Number Positive or Negative Square Root Area of Rectangle Celsius to Fahrenheit Sum of Digits Check Armstrong Num Random Number Count Words Count Vowels in a String Remove Vowels Count Digits in a String Reverse a String Palindrome Check Check Anagram Convert String to Array Remove Whitespace Count Character Frequency Sum of Array Elements Find Array Average Sort an Array Find Smallest Element Find Largest Element Second Largest Array Min and Max Array Merge Two Arrays Remove Duplicates Find Duplicates Shuffle an Array Factorial of a Number Fibonacci Sequence Find GCD Check Prime Number ArrayList Loop HashMap Loop Loop Through an Enum
Top answer 1 of 9
24
Iterator<User> it = list.iterator();
while (it.hasNext()) {
User user = it.next();
if (user.getName().equals("John Doe")) {
it.remove();
}
}
2 of 9
7
You could use something like this:
// If you are using java 8
userList.removeIf(user-> user.getName().equals("yourUserName"));
// With older version
User userToRemove = null;
for(User usr:userList) {
if(usr.getName().equals("yourUserName")) {
userToRemove = usr;
break;
}
}
userList.remove(userToRemove);
TutorialsPoint
tutorialspoint.com › java › util › arraylist_remove.htm
Java ArrayList remove() Method
The Java ArrayList remove(Object) method removes the first occurrence of the specified element from this list, if it is present.If the list does not contain the element, it is unchanged.
Programiz
programiz.com › java-programming › library › arraylist › remove
Java ArrayList remove()
In the above example, we have created a arraylist named languages. The arraylist stores the name of programming languages. Here, we have used the remove() method to remove the element Java from the arraylist.