Question

How to remove an element from ArrayList in Java

Answer 1

import java.util.ArrayList;
import java.util.Arrays;
  
public class MyClass {
    public static void main(String args[]) {
        ArrayList<Integer> al = new ArrayList<>(Arrays.asList(12, 90, 87, 40, 100, 50, 99, 3)); 
    
        System.out.println(al); 
             
        al.remove(2); 
  
        System.out.println(al); 
         
        al.remove(5); 
 
        System.out.println(al); 
    }
}
       
       
       
       
       
/*
run:
       
[12, 90, 87, 40, 100, 50, 99, 3]
[12, 90, 40, 100, 50, 99, 3]
[12, 90, 40, 100, 50, 3]
   
*/

 

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Answer 2

import java.util.ArrayList;
import java.util.Arrays;
 
public class AbstractListDemo {
    public static void main(String args[])
    {
        ArrayList<String> al = new ArrayList<>(Arrays.asList("java", "c", "c++", "rust", "c#"));
 
        al.remove("c++");
   
        System.out.println(al);
    }
}
 
 
 
 
 
/*
run:

[java, c, rust, c#]
 
*/

 

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Answer 3

import java.util.ArrayList;
import java.util.Arrays;
 
public class MyClass {
    public static void main(String args[]) {
        ArrayList<Integer> al = new ArrayList<>(Arrays.asList(12, 89, 23, 99, 89, 75, 30, 40)); 
   
        System.out.println(al); 
            
        al.remove(1);
        System.out.println(al); 
         
        al.remove(1); 
        System.out.println(al); 
         
        al.remove(2); 
        System.out.println(al); 
    
    }
}
      
      
   
    
      
      
/*
run:
      
[12, 89, 23, 99, 89, 75, 30, 40]
[12, 23, 99, 89, 75, 30, 40]
[12, 99, 89, 75, 30, 40]
[12, 99, 75, 30, 40]
  
*/

 

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Answer 4

import java.util.ArrayList;
  
public class MyClass {
    public static void main(String args[]) { 
        ArrayList<String> arrList = new ArrayList<String>();
 
        arrList.add("Java");
        arrList.add("C#");
        arrList.add("C++");
        arrList.add("PHP");
        arrList.add("JavaScript");
        arrList.add("C");
        arrList.add("Swift");
         
        arrList.remove(2);
         
        for (String s : arrList) {
            System.out.println(s);
        }
    }
}
  
  
  
/*
run:
  
Java
C#
PHP
JavaScript
C
Swift
 
*/

 

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