C語言中打印各種三角形

1、.1.32.33.public class Triangle 1./*2.3. *param args4. */5.public static void main(String args) a();/打印正等腰三角b();/打印倒等腰三角c();/打印直邊靠左正直角三角d();/打印直邊靠右正直角三角e();/打印直邊靠左倒直角三角f();/打印直邊靠右倒直角三角g();/打印底邊靠左鈍角角三角h();/打印底邊靠右鈍角角三角/* 作用 : 打印正等腰三

2、角*/public static void a()System.out.println( " 打印正等腰三角 " );int i ,j;for (i= 1;i<= 5;i+)for (j= 5;j>i;j-) System.out.print( " ");for (j= 0;j<i* 2- 1;j+) System.out.print( "*" );System.out.println(); /*34. * 打印倒等腰三角35. */36. public static void b()37. System.out.p

3、rintln(" 打印倒等腰三角 " );38. int i ,j ;39. for (i= 1;i<= 5;i+)40. for (j= 1;j<i;j+)41. System.out.print( " ");42. 43. for (j= 10;j>i* 2- 1;j-)44. System.out.print( "*" );45. 46. System.out.println();47. 48. 49. /*50. * 打印直邊靠左正直角三角51.52.53.");7.58.59.

4、6.67.");0.81.* /public static void c()System.out.println( "打印直邊靠左正直角三角int i ,j ;for (i= 1;i<= 5;i+)for (j= 0;j<i;j+) System.out.print( "*" ); System.out.println();/* 打印直邊靠右正直角三角* /public static void d()System.out.print

5、ln( "打印直邊靠右正直角三角 int i ,j;for (i= 1;i<= 5;i+)for (j= 5;j>i;j-) System.out.print( " ");for (j= 0;j<i;j+) System.out.print( "*" );System.out.println();/* 打印直邊靠左倒直角三角* /82. public static void e()83. System.out.println( " 打印直邊靠左倒直角三角" );0.91

6、.92./*int i ,j;for (i= 1;i<= 5;i+)for (j= 5;j>=i;j-)System.out.print( "*" );System.out.println();93. *打印直邊靠右倒直角三角94. */95.96.");00.public static void f()System.out.println( "打印直邊靠右倒直角三角int i ,j;for (i= 1;i<= 5;i+)for (j= 1;j<i;j+)System.out.print( " &qu

7、ot;);101. 102.for (j= 5;j>=i;j-)103. System.out.print( "*" );07.108.109./*打印底邊靠左鈍角角三角System.out.println();20.121.for (i=110.*/111.public static void g()112.System.out.println( "打印底邊靠左鈍角角三角");113.int i,j ;114.for (i=1;i<= 5;i+)115.for (j= 0;j<i;j

8、+)116.System.out.print("*"System.out.println();1;i< 5;i+)for (j= 5;j>i;j-)122.System.out.print("*" );123.124.System.out.println();125.126.127./*128.* 打印底邊靠右鈍角角三角129.*/130.public static void h()131.) );System.out.print( "打印底邊靠右鈍角角三角132.int i,j;133.for (i= 0;i<= 5;i+)

9、134.for (j= 5;j>i;j-)135.System.out.print(" ");136.137.for (j= 0;j<i;j+)138.System.out.print("*" );139.140.System.out.println();141.142.for (i= 1;i< 5;i+)143.for (j= 0;j<i;j+)144.System.out.print(" ");145.146.for (j= 5;j>i;j-)147.System.out.print("*&

10、quot; );148.149.System.out.println();150.151.152.逆序的各種算法：1. public classReverse 2. publicstaticvoidmain(String args) 3. / 定義的字符4. Strings = " 華中愛我 "5.6.7. / 通過 String 的 subString 方法8. intlen = s.length();9. String sub_reverse = ""10. for (int i = len; i > 0;i-)11. sub_reverse

11、+= s.substring(i - 1,i);/ 返回子字符串，開始于 i-1 結(jié)束于 i12. System.out.println(" 通過 substring 方法逆序 : "+sub_reverse);13.14.15. / 通過 Sring 的 StringBuffer 方法逆序16. String buffer_reverse;17. buffer_reverse=(newStringBuffer(s).reverse().toString();18. System.out.println(" 通過 StringBuffer 方法逆序 : "+buffer_reverse);19.20.21. / 通過數(shù)組實現(xiàn)字符串逆序22. charc =s.toCharArray();23. chartemp=