Question

How to add N (a number) to each element in ArrayList in Java

Answer 1

package javaapplication1;

import java.util.ArrayList;

public class JavaApplication1 {

    public static void main(String[] args) {

        try {

            ArrayList<Integer> list = new ArrayList<>();
            
            list.add(0);
            list.add(1);
            list.add(12);
            list.add(17);
            list.add(24);
            
            list.replaceAll(n -> n + 3);
            
            System.out.println(list);

        } catch (Exception e) {
            System.out.println(e.toString());
        }
    }
}

/*
               
run:
  
[3, 4, 15, 20, 27]
      
 */

 

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