JAVA菱形(空心or实心)

7行菱形
public class lingxing｛

1. public static void main(String[] args){
2. //上部分；
3. for(int a=1; a<=4; a++){
4. for(int b=1;b<=4-a;b++){
5. System.out.print(‘’ ‘’);}
6. for(int c=1;c<=2*a-1;c++){
7. if(c= =1 || c= =2*a-1){
8. System.out.print(‘’ * ‘’);}
9. else{System.out.print(‘’ ‘’);}}
10. System.out.println();}
11. //下部分；
12. for(int a=1;a<=3;a++){
13. for(int b=1;b<=a;b++){
14. System.out.print(‘’ ‘’);}
15. for(int c=1;c<=7-2*a;c++){
16. if(c= =1 || c= =7-2*a){
17. System.out.print(‘’ * ‘’);}
18. else{System.out.print(‘’ ‘’);}}
19. System.out.println();}

20. for(int a=1;a<=4;a++){
21. for(int b=1;b<=4-a;b++){
22. System.out.print(‘’ ‘’);}
23. for(int c=1;c<=2*a-1;c++){
24. System.out.print(‘’ * ‘’);}
25. System.out.println();}
26. for(int a=1;a<=3;a++){
27. for(int b=1;b<=a;b++){
28. System.out.print(‘’ ‘’);}
29. for(int c=1;c<=7-2*a;c++){
30. System.out.print(‘’ * ‘’);}
31. System.out.println();} }}