/* 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)
	{
		ToString2();
	}
    public static String ToString2() {

       int idades [] = {12,20,30,40};
       int i;

       for (i = 0; i < 4 ; i++){
          System.out.println(idades[i]);
       }
       for (i=0; i < idades.length;i++){
          System.out.println("idades "+Arrays.toString(idades));
       }
       return "";
    }
}