TanSanC

public class Test
{
	public static void main(String[] args)
	{
		String text = "AAA BBB CCC DDD EEE FFF";
		int count = 0;

		for (int i = 0; i < text.length(); i++)
		{
			if (text.charAt(i) == ' ')
			{
				count++;
			} else
			{
			}
		}
		String[] textResult = new String[count + 1];

		int i, j, k;
		for (i = 0; i < text.length(); i++)
		{
			if (text.charAt(i) == ' ')
			{
				textResult[0] = text.substring(0, i);
				break;
			}
		}
		System.out.print(textResult[0]);
		int lastValue =	0;
		for (k = 1; i < text.length(); k++)
		{
			i = i + 1;
			j = i;
			for (; i < text.length(); i++)
			{
				if (text.charAt(i) == ' ')
				{
					System.out.print("\n");
					textResult[k] = text.substring(j, i);
					lastValue = i;
					break;
				}
			}
		}
		textResult[k-1] = text.substring(lastValue+1 , text.length() );		
		for( String s : textResult )
		{
			System.out.println(s);
		}
	}
}

public class Test
{
	public static void main(String[] args)
	{
		String text = "AAA BBB CCC DDD EEE FFF";
		
		StringTokenizer st = new StringTokenizer(text, " ");
		
		while(st.hasMoreTokens() )
		{
			System.out.println(st.nextToken());
		}
	}
}