Java full-width character half-width character conversion

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2. <summary>
4. ///Determine if the characters are English half-width characters or punctuation
6. // </summary>
8. // <remarks>
10. /// 32 spaces
12. /// 33-47 punctuation
14. /// 48-57 0~9
16. /// 58-64 punctuation
18. /// 65-90 a~z
20. /// 91-96 punctuation
22. /// 97-122 a~z
24. /// 123-126 punctuation
26. // </remarks>
28. public static bool Isbjchar (char c)
30. {
32. int i = (int) C;
34. return i >= && i <= 126;
36. }
40. // <summary>
42. ///Determines whether the character is full-width character or punctuation
44. // </summary>
46. // <remarks>
48. //<para> Full-width characters-65248 = half-width characters </para>
50. // <para> Full-width space exceptions </para>
52. // </remarks>
54. public static bool Isqjchar (char c)
56. {
58. if (c = = ' \u3000 ') return true;
62. int i = (int) c- 65248;
64. if (i < ) return false;
66. return Isbjchar ((char) i);
68. }
72. // <summary>
74. /// convert full-width characters in a string to half-width
76. // </summary>
78. public static string Tobj (string s)
80. {
82. if (s = = Null | | S.trim () = = string.  Empty) return s;
86. StringBuilder sb = new StringBuilder (s.length);
88. For (int i = 0; i < s.length; i++)
90. {
92. if (s[i] = = ' \u3000 ')
94. Sb.  Append (' \u0020 ');
96. Else if (Isqjchar (S[i]))
98. Sb.  Append ((char) ((int) s[i]- 65248));
100. Else
102. Sb. Append (S[i]);
104. }
108. return SB.  ToString ();
110. }

Full-width spaces are 12288 and half-width spaces are 32

Other character half-width (33-126) and examination. The corresponding relationship between the full angle (65281-65374) is: The difference is 65248

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2. /***************************************
4. *
6. * Full angle conversion into half angle
8. * @param input Raw string
10. * @return The converted String
12. *
14. ***************************************/
16. Public static string Qtob (String input) {
18. Char c[] = Input.tochararray ();
20. for (int i = 0; i < c.length; i++) {
22. if (c[i] = = ' \u3000 ') {
24. C[i] = ";
26. }?
28. else if (c[i] > ' \uff00 ' && c[i] < ' \uff5f ') {
30. C[i] = (char) (C[i]- 65248);
32. }
34. }
36. return new String (c);
38. }

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2. Half angle turn full angle
4. Public static string Btoq (String input) {
6. Char c[] = Input.tochararray ();
8. for ( int i=0; i<c.length;i++) {
10. if (c[i] = =") {
12. C[i] = ' \u3000 ';
14. }
16. else if (c[i]<' \177 ') {
18. c[i]= (char) (c[i]+65248);
20. }
22. }
24. return new String (c);
26. }

Java full-width character half-width character conversion