Answers for "arraylist remove value in java"

Java

How to remove element from arraylist in java

// Java.util.ArrayList.remove(Object) method example
import java.util.ArrayList;
import java.util.List;
public class ArrayListRemoveObjectMethod
{
   public static void main(String[] args)
   {
      List<Integer> al = new ArrayList<>();
      al.add(56);
      al.add(28);
      al.add(39);
      al.add(59);
      al.add(82);
      System.out.println("Before using ArrayList.remove(Object) method size of ArrayList: " + al);
      // removes element 56
      al.remove(new Integer(56));
      // removes element 28
      al.remove(new Integer(28));
      System.out.println("After using ArrayList.remove(Object) method size of ArrayList: " + al);
   }
}

Posted by: Guest on December-01-2020

Source

How to remove element from arraylist in java

// java program on ArrayList remove(int index) method example
import java.util.ArrayList;
import java.util.List;
public class ArrayListRemoveIndex
{
   public static void main(String[] args)
   {
      List<Integer> al = new ArrayList<>();
      al.add(56);
      al.add(28);
      al.add(39);
      al.add(59);
      al.add(82);
      System.out.println("Before using ArrayList.remove(int index) method: " + al);
      // removes element 28
      al.remove(1);
      // element 39 is now moved one position back
      // So element 39 is removed
      al.remove(1);
      System.out.println("After using ArrayList.remove(int index) method: " + al);
   }
}

Posted by: Guest on December-01-2020

Source

remove item from arraylist in java

//Create the ArrayList
List<Integer> al = new ArrayList<>(); 
//Add the items
al.add(10);
al.add(18);
//Remove item(1 = 2and item in list)
al.remove(1);

Posted by: Guest on December-31-2019

arraylist remove value in java

// Given a list of Integers 1, 2, 3, 4, 5, 6 ....etc. remove all values greater than 100.
    public static void main(String[] args) {

ArrayList<Integer>list1=new ArrayList<>(Arrays.asList(1,2,3,50,70,80,120,150,200));
        ArrayList<Integer>list2 = new ArrayList<>();
        for(int each : list1)
            if(each<100)
                list2.add(each);

            list1 = list2;
        System.out.println(list1); // [1, 2, 3, 50, 70, 80]
    }

Posted by: Guest on June-09-2021

arraylist remove name in java

public static void main(String[] args) {

ArrayList<String> names = new ArrayList<>(Arrays.asList("Ahmed", "John", "Eric", "Ahmed"));
    names.removeAll( Arrays.asList("Ahmed"));
    System.out.println(names); // [John, Eric]

Posted by: Guest on June-09-2021

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