Question

How to Iterate (next(), previous()) through ArrayList elements using ListIterator in Java

Answer 1

package javaapplication1;

import java.util.ArrayList;
import java.util.ListIterator;

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");
        
        ListIterator itr = arrList.listIterator();
  
        while (itr.hasNext()) 
            System.out.println(itr.next());

        System.out.println();
        
        while (itr.hasPrevious()) 
            System.out.println(itr.previous());
  }
}
  
/*
run:
 
Java
C#
C++
PHP
JavaScript
C
Swift

Swift
C
JavaScript
PHP
C++
C#
Java
  
*/

 

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