Question

How to replace an ArrayList element at specified index in Java

Answer 1

package javaapplication1;

import java.util.ArrayList;

public class JavaApplication1 {

    public static void main(String[] args) {

        ArrayList arrList = new ArrayList();
   
        arrList.add("Java");
        arrList.add("C#");
        arrList.add("C++");
        arrList.add("PHP");
        arrList.add("JavaScript");
        arrList.add("C");
        arrList.add("Swift");
        
        arrList.set(2, "Assembler");
        
        for (int i=0; i < arrList.size(); i++)
            System.out.println(arrList.get(i));
  }
}
  
/*
run:

Java
C#
Assembler
PHP
JavaScript
C
Swift

*/

 

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