Someone

public class three
{
	public static void main(String args[])
	{
		for (int i = 1; i<=6; i++)
		{
			for (int j = 0; j<((i+1)/2); j++)
			{
				System.out.print("*");
			}
			System.out.print(i);
			System.out.println();
		}
	}
}