how to remove an item from a list in java code example

Example 1: 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);
   }
}

Example 2: java list remove

List<String> list = new ArrayList<>();
list.remove(key);

Example 3: how to remove an element from an arraylist java

// Java program to demonstrate working of remove 
// on an integer arraylist 
import java.util.List; 
import java.util.ArrayList; 
  
public class GFG 
{ 
    public static void main(String[] args) 
    { 
        List<Integer> al = new ArrayList<>(); 
        al.add(10); 
        al.add(30); 
        al.add(1); 
        al.add(2); 
  
        // This makes a call to remove(int) and  
        // removes element 20. 
        al.remove(1); 
          
        // Now element 30 is moved one position back 
        // So element 30 is removed this time 
        al.remove(1); 
  
        System.out.println("Modified ArrayList : " + al); 
    } 
}