Converting Arrays to Lists to Arrays in java?

Here's how you can convert an Array to an ArrayList and then back again to an Array:

// ListDemo.java

import java.util.*;

class ListDemo

{

public static void main(String[] args)

{

String[] array = {"A", "B", "C", "D"};

// convert to list

List temp = Arrays.asList(array);

ArrayList list = new ArrayList(temp);

for(String s: list) System.out.println(s);

System.out.println();

// convert back to array

String[] array2 = new String[list.size()];

array2 = list.toArray(array2);

for(String s: array2) System.out.println(s);

}

}

The output is: