/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		ArrayList<StringBuilder> list = new ArrayList<StringBuilder>();
        list.add(new StringBuilder("1"));
        list.add(new StringBuilder("2"));
        list.add(new StringBuilder("3"));
        StringBuilder[] stringList = list.toArray(new StringBuilder[0]);
        for (StringBuilder string :
                stringList) {
            string.append(" changed");
        }
        System.out.println(Arrays.toString(stringList));
        System.out.println(list);
	}
}

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