Three ways to append file content to Java

2. Import <a href="HTTP://LIB.CSDN.NET/BASE/17" class=' Replace_word ' title="Java ee Knowledge Base" target=' _blank ' style=' color: #df3434; font-weight:bold; ' >java</a>.io.  BufferedWriter;
4. Import Java.io.File;
6. Import Java.io.FileOutputStream;
8. Import Java.io.FileWriter;
10. Import java.io.IOException;
12. Import Java.io.OutputStreamWriter;
14. Import Java.io.RandomAccessFile;
18. /**
20. *
22. * @author Malik
24. * @version 2011-3-10 10:49:41
26. */
28. Public class AppendFile {
32. public static void method1 (string file, String conent) {
34. BufferedWriter out = null;
36. try {
38. out = new BufferedWriter (Newoutputstreamwriter (new FileOutputStream (file, true));
40. Out.write (conent);
42. } catch (Exception e) {
44. E.printstacktrace ();
46. } finally {
48. try {
50. if (out! = null) {
52. Out.close ();
54. }
56. } catch (IOException e) {
58. E.printstacktrace ();
60. }
62. }
64. }
68. /**   
70. * Append file: Use FileWriter
72. *
74. * @param fileName
76. * @param content
78. */
80. public static void Method2 (String fileName, string content) {
82. FileWriter writer = null;
84. try {
86. //Open a write file, the second parameter in the constructor true indicates that the file is written in append form
88. writer = New FileWriter (FileName, true);
90. Writer.write (content);
92. } catch (IOException e) {
94. E.printstacktrace ();
96. } finally {
98. try {
100. if (writer! = null) {
102. Writer.close ();
104. }
106. } catch (IOException e) {
108. E.printstacktrace ();
110. }
112. }
114. }
118. /**   
120. * Append file: Use Randomaccessfile
122. *
124. * @param filename
126. * @param content Additions
128. */
130. public static void Method3 (String fileName, string content) {
132. Randomaccessfile randomfile = null;
134. try {
136. //Open a random Access file stream, read and write
138. Randomfile = New Randomaccessfile (FileName, "RW");
140. //File length, number of bytes
142. Long filelength = Randomfile.length ();
144. //Move the Write file pointer to the end of the file.
146. Randomfile.seek (filelength);
148. Randomfile.writebytes (content);
150. } catch (IOException e) {
152. E.printstacktrace ();
154. } finally{
156. if (randomfile! = null) {
158. try {
160. Randomfile.close ();
162. } catch (IOException e) {
164. E.printstacktrace ();
166. }
168. }
170. }
172. }
176. public static void Main (string[] args) {
178. try{
180. File File = new file ("D://text.txt");
182. if (File.createnewfile ()) {
184. System.out.println ("Create file successed");
186. }
188. Method1 ("D://text.txt", "123");
190. METHOD2 ("D://text.txt", "123");
192. Method3 ("D://text.txt", "123");
194. }catch (Exception e) {
196. System.out.println (e);
198. }
200. }
202. }

Three ways to append file content to Java