Modify the existing ArrayList contents, by erasing the second element, then inserting 100 and 102 in the shown locations. Use ArrayList remove() and add() only. Sample output of below program with input 101 200 103: 100 101 102 103 code example

Example: Modify the existing ArrayList contents, by erasing the second element, then inserting 100 and 102 in the shown locations. Use ArrayList remove() and add() only. Sample output of below program with input 101 200 103: 100 101 102 103

import java.util.ArrayList;
import java.util.Scanner;

public class ArrayListADT {
   public static void printArrayList(ArrayList<Integer> numsList) {
      int i;

      for (i = 0; i < numsList.size(); ++i) {
         System.out.print(numsList.get(i));
         System.out.print(" ");
      }

      System.out.println("");
   }

   public static void main(String [] args) {
      Scanner scnr = new Scanner(System.in);
      ArrayList<Integer> numsList = new ArrayList<Integer>();
      int userInput;
      int i;

      for (i = 0; i < 3; ++i) {
         userInput = scnr.nextInt();
         numsList.add(userInput);
      }

       numsList.remove(1);
      
      numsList.add(0, 100);
      
      numsList.add(2, 102);

      printArrayList(numsList);
   }
}

Tags:

Misc Example