A simple notepad

A simple notepad. Version V1.0

Supported: File Creation, opening, saving, read-only, and exit (including shortcut keys)

Code:

1. Package myclass. notepad;
3. Import java. AWT. frame;
4. Import java. AWT. headlessexception;
5. Import java. AWT. event .*;
6. Import java. AWT. menubar;
7. Import java. AWT. Menu;
8. Import java. AWT. menuitem;
9. Import java. AWT. menushortcut;
10. Import java. AWT. checkboxmenuitem;
11. Import java. AWT. filedialog;
12. Import java. Io. fileinputstream;
13. Import java. Io .*;
14. Import java. AWT. textarea;
16. /**
17. * <P> title: notepad </P>
18. * <P> Description: simple Notepad program </P>
19. * <P> copyright: Copyright (c) 2010 </P>
20. * <P> company: new core </P>
21. * @ Author not attributable
22. * @ Version 1.0
23. */
25. Public class notepad {
26. Public static string Path = NULL;
27. Public static void main (string [] ARGs) throws headlessexception {
28. Final frame = new frame ("simple Notepad ");
29. Frame. setsize (800,600 );
30. Frame. setlocation (200,200 );
31. Frame. addwindowlistener (New windowadapter (){
32. Public void windowclosing (windowevent e ){
33. System. Exit (0 );
34. }
35. });
36. Menubar bar = new menubar ();
37. Menu = new menu ("file", true );
38. Menu. addseparator ();
39. Menu menu1 = new menu ("edit", true );
40. Menu1.addseparator ();
41. Menu more = new menu ("more ");
43. Final textarea TA = new textarea ();
45. Menushortcut MS = new menushortcut (keyevent. vk_s, false );
46. Menushortcut ms1 = new menushortcut (keyevent. vk_o, false );
47. Menushortcut MS2 = new menushortcut (keyevent. vk_f4, false );
48. Menuitem MI = new menuitem ("new ");
49. Mi. addactionlistener (New actionlistener (){
50. Public void actionreceivmed (actionevent e ){
51. Ta. settext ("");
52. }
53. });
54. Menuitem Mi1 = new menuitem ("open", ms1 );
55. Final checkboxmenuitem CM = new checkboxmenuitem ("read-only", false );
56. Cm. additemlistener (New itemlistener (){
57. Public void itemstatechanged (itemevent e ){
58. If (CM. getstate ()){
59. Ta. seteditable (false );
60. } Else {
61. Ta. seteditable (true );
62. }
64. }
65. });
66. Mi1.addactionlistener (New actionlistener (){
67. Public void actionreceivmed (actionevent e ){
68. Filedialog FD = new filedialog (frame, "Open File", filedialog. load );
69. FD. Show ();
70. // System. Out. println (FD. GetFile ());
71. Path = FD. getdirectory () + FD. GetFile ();
72. // System. Out. println (PATH );
73. If (path! = NULL ){
74. Try {
75. Fileinputstream is = new fileinputstream (PATH );
76. Byte B [] = new byte [10*1024];
77. Int Len = is. Read (B );
78. If (CM. getstate ()){
79. Ta. seteditable (false );
80. }
81. // Clear the previous content
82. Ta. settext ("");
83. Ta. append (new string (B, 0, Len ));
84. }
85. Catch (filenotfoundexception ex ){
86. System. Out. println ("this file cannot be found ");
87. }
88. Catch (ioexception ex1 ){
89. }
90. }
91. }
92. });
94. Menuitem separa = new menuitem ("-");
95. Menuitem mi2 = new menuitem ("save", MS );
97. Mi2.addactionlistener (New actionlistener (){
98. Public void actionreceivmed (actionevent e ){
99. String A = TA. gettext ();
100. If (path! = NULL ){
101. Bufferedwriter WRI = NULL;
102. Try {
103. WRI = new bufferedwriter (New filewriter (PATH ));
104. WRI. Write ();
105. WRI. Close ();
106. }
107. Catch (ioexception ex1 ){
108. }
110. } Else {
112. Filedialog FD = new filedialog (frame, "save file", filedialog. Save );
113. FD. Show ();
115. String path1 = FD. getdirectory () + FD. GetFile ();
116. Try {
117. Bufferedwriter WRI = new bufferedwriter (New filewriter (path1 + ". txt "));
118. WRI. Write ();
119. WRI. Close ();
120. }
121. Catch (ioexception ex ){
122. }
124. }
126. }
127. });
129. Menuitem MI3 = new menuitem ("copy ");
130. Menuitem mi4 = new menuitem ("Paste ");
131. Menuitem MI5 = new menuitem ("cut ");
133. Menuitem MI7 = new menuitem ("Save ");
134. Menuitem MI8 = new menuitem ("page settings ");
135. Menuitem mi9 = new menuitem ("print ");
136. Menuitem mi10 = new menuitem ("quit", MS2 );
137. Mi10.addactionlistener (New actionlistener (){
138. Public void actionreceivmed (actionevent e ){
139. System. Exit (0 );
140. }
141. })
142. );
144. Menu. Add (MI );
145. Menu. Add (Mi1 );
146. Menu. Add (separa );
147. Menu. Add (mi2 );
148. Menu. Add (CM );
149. Menu. Add (more );
150. Menu. Add (mi10 );
151. Menu1.add (MI3 );
152. Menu1.add (mi4 );
153. Menu1.add (MI5 );
155. More. Add (MI7 );
156. More. Add (MI8 );
157. More. Add (mi9 );
159. Bar. Add (menu );
160. Bar. Add (menu1 );
161. Frame. setmenubar (bar );
162. Frame. Add (TA );
163. Frame. Show ();
164. }
166. }