public class AnsewerTest
{
    public static void main(String[] args)
    {
        String[] st = {"abcde","fghij","klmno","pqrst"};
        for(int i=0;i<st[2].length();i++)
        {
                System.out.println(st[2].charAt(i));
        }
    }
}

------解决方案--------------------
Java code

public static void main(String[] args)
    {
        String[] st = {"abcde","fghij","klmno","pqrst"};
        System.out.println(st[2].charAt(0));
        System.out.println(st[2].charAt(1));
        System.out.println(st[2].charAt(2));
        System.out.println(st[2].charAt(3));
        System.out.println(st[2].charAt(4));
    }