java打印一个菱形

class  Part1
{
	public static void paint(int n){
		for(int i=1 ; i<=n ; i++){
		paintDiamond(n,i) ;
		}
		for (int m=n-1;m>=0 ;m-- )
		{
		paintDiamond(n,m) ;
		}
	}


	public static void paintDiamond(int n,int i){
		for (int k=1;k<=n-i ;k++ )
			{
				System.out.print(" ");
			}
			for (int j=1;j<i ;j++ )
			{
				System.out.print("*");
				System.out.print(" ");
			}
			System.out.println(" ") ;
	}
	public static void main(String[] args) 
	{	
	paint(8);
	}
}