Question

How to append ArrayList to another ArrayList at specific position in Java

Answer 1

import java.util.*; 
  
public class MyClass {
    public static void main(String args[]) { 
        ArrayList<String> al1 = new ArrayList<String>(10); 
     
        al1.add("c++"); 
        al1.add("c"); 
        al1.add("javascript"); 
        al1.add("c#"); 
        al1.add("java"); 
         
        ArrayList<String> al2 = new ArrayList<String>(3); 
         
        al2.add("php"); 
        al2.add("python"); 
        al2.add("nodejs"); 
   
        al1.addAll(2, al2); 
 
        System.out.println(al1); 
    }
}
    
    
    
/*
run:
    
[c++, c, php, python, nodejs, javascript, c#, java]
   
*/

 

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