//功能： 打印菱形

public class Demo2
{
	public static void main (String []args){

		int lay = 5;
		int i,j,k;

		for (i=1;i<=lay ;i++ )
		{
			//打印空格
			for ( k=i+1;k<=lay ;k++ )
			{
				System.out.print(" ");
			}

			//打印*
			for ( j=1;j<=(i-1)*2+1 ;j++ )
			{
				System.out.print("*");
			}

			System.out.println();
		}
		for ( i=1;i<=lay ;i++ )
		{
			for ( k=1;k<=i ;k++ )
			{
				System.out.print(" ");
			}
			for ( j=i;j<2*lay-i-1 ;j++ )
			{
				System.out.print("*");
			}
			System.out.println();
		}
		 
	}
}