Question

Assume we already have an ArrayList of Integers called list. Write code that will add 1 to each element of the list. For example, if the list originally contained 2, 4,-3, then it should contain 3, 5, -2 after the lines of code execute. Just write the necessary lines of code (not a whole method or program). Assume we already created the ArrayList and filled it with Integers.

Answer 1

ANSWER: Here I am giving you the code and output please like it.

CODE:

import java.util.ArrayList;
public class Main
{
   public static void main(String[] args) {
       ArrayList<Integer> list = new ArrayList<Integer>();
       list.add(2);
       list.add(4);
       list.add(-3);
       System.out.println("Given list is :"+list);
      
       for(int i=0;i<list.size();i++) {
                   list.add(i, list.get(i)+1);
       }
       System.out.println("ArrayList after adding 1 in each element:"+list);
   }
}

OUTPUT:

Given list is : [2, 4, -3] ArrayList after adding 1 in each element:[3, 5, -2]