学步园

package cn.dfeng;<br /> /**<br /> * 该类能够用*打印大小的钻石图形<br /> * @author dfeng<br /> *<br /> */<br /> public class Drawer {</p> <p> /**<br /> * 打印钻石图形<br /> * @param n 钻石大小<br /> */<br /> public void printDiamond( int n ){<br /> System.out.println();<br /> int i = 0;<br /> boolean flag = true;<br /> while( i >= 0 ){<br /> if (i < n) {<br /> for (int j = 0; j < n - i; j++) {<br /> System.out.print(" ");<br /> }<br /> for (int j = n - i; j <= n + i; j += 2) {<br /> System.out.print("* ");<br /> }<br /> System.out.println();<br /> }<br /> if (i == n) {<br /> flag = false;<br /> i--;<br /> }<br /> if (flag) {<br /> i++;<br /> } else {<br /> i--;<br /> }<br /> }</p> <p> }<br /> }<br />