/** * 类说明 * * @author 曾修建 * @version 创建时间:2014-7-23 上午09:50:46 */ public class Diamond { public static void getDia(int n) { System.out.println("第一个 :"); for (int i = 0; i < n/2+1; i++) { for (int j2 = 0; j2 < n/2+1-i; j2++) { System.out.print(" "); } for (int j2 = 0; j2 < 2*i+1; j2++) { System.out.print("+"); } System.out.println(); } for (int i = n/2; i > 0; i--) { for (int j = 0; j < n/2-i+2; j++) { System.out.print(" "); } for (int j = 0; j < 2*i-1; j++) { System.out.print("+"); } System.out.println(); } System.out.println("第二个 :"); for(int i = 1;i <= n;i++){ if(i <= n/2 + 1){ for(int k = 1;k <= n/2 + 1- i;k++){ System.out.print(" "); } for(int k = 1;k <= i;k++){ System.out.print("+ "); } System.out.println(); }else{ for(int k =1;k <= (i -(n/2 + 1));k++){ System.out.print(" "); } for(int k = 1;k <= (2 *(n/2 + 1) - i);k++){ System.out.print("+ "); } System.out.println(); } } System.out.println("第三个 :"); for(int k = 1;k <= n/2 + 1;k++){ for(int i = 1;i <= (n/2 + 1 - k);i++){ System.out.print(" "); } System.out.print("*"); for(int i = 1;i <= ( (k - 2) * 2 + 1);i++){ System.out.print(" "); } if(k != 1){ System.out.print("*"); } System.out.println(); } for(int k = n/2 ;k >=1;k--){ for(int i = 1;i <= (n/2 + 1 - k);i++){ System.out.print(" "); } System.out.print("*"); for(int i = 1;i <= ( (k - 2) * 2 + 1);i++){ System.out.print(" "); } if(k != 1){ System.out.print("*"); } System.out.println(); } } public static void main(String[] args) { getDia(9); } }
结果如下:
第一个 :
+
+++
+++++
+++++++
++++++++
+++++++
+++++
+++
+
第二个 :
+
+ +
+ + +
+ + + +
+ + + + +
+ + + +
+ + +
+ +
+
第三个 :
*
* *
* *
* *
* *
* *
* *
* *
*