備份一下輸出資料流，免得久不用忘記掉

  import java.io.File;<br />import java.io.FileOutputStream;<br />import java.io.IOException;<br />import java.io.OutputStream;<br />import java.io.OutputStreamWriter;<br />import java.io.PrintWriter;<br />import java.io.Writer;<br />public class WriteToFile {<br />public static void writeFileByBytes(String fileName) {<br />File file = new File(fileName);<br />OutputStream out = null;<br />try {<br />// 開啟檔案輸出資料流<br />out = new FileOutputStream(file);<br />String content = "檔案內容： 1,The First line; 2,The second line.";<br />byte[] bytes = content.getBytes(); // 讀取輸出資料流中的位元組<br />out.write(bytes);<br />System.out.println("寫檔案" + file.getAbsolutePath() + "成功！");<br />} catch (IOException e) {<br />System.out.println("寫檔案" + file.getAbsolutePath() + "失敗！");<br />e.printStackTrace();<br />} finally {<br />if (out != null) {<br />try {<br />out.close();<br />} catch (IOException e1) {<br />e1.printStackTrace();<br />}<br />}<br />}<br />}<br />public static void writeFileByChars(String fileName) {<br />File file = new File(fileName);<br />Writer writer = null;<br />try {<br />// 開啟檔案輸出資料流<br />writer = new OutputStreamWriter(new FileOutputStream(file));<br />String counter = "檔案內容 1,The First line; 2,The second line.";<br />writer.write(counter);<br />System.out.println("寫檔案 " + file.getAbsolutePath() + "成功！");<br />} catch (IOException e) {<br />System.out.println("寫檔案 " + file.getAbsolutePath() + "失敗！");<br />e.printStackTrace();<br />} finally {<br />if (writer != null) {<br />try {<br />writer.close();<br />} catch (IOException e1) {<br />e1.printStackTrace();<br />}<br />}<br />}<br />}<br />public static void writeFileByLines(String fileName) {<br />File file = new File(fileName);<br />PrintWriter writer = null;<br />try {<br />writer = new PrintWriter(new FileOutputStream(file));<br />writer.println("檔案內容："); // 寫字串<br />// 寫入各種基本類型資料<br />writer.print(true);<br />writer.print(155);<br />writer.println(); // 換行<br />writer.flush(); // 寫入檔案<br />System.out.println("寫檔案 " + file.getAbsolutePath() + "成功！");<br />} catch (IOException e) {<br />System.out.println("寫檔案 " + file.getAbsolutePath() + "失敗！");<br />e.printStackTrace();<br />} finally {<br />if (writer != null) {<br />writer.close(); // 關閉輸出檔案流<br />}<br />}<br />}<br />public static void main(String[] args) {<br />String fileName = "d://Test//newTemp.txt";<br />WriteToFile.writeFileByBytes(fileName);<br />fileName = "d://Test//newTemp1.txt";<br />WriteToFile.writeFileByChars(fileName);<br />fileName = "d://Test//newTemp2.txt";<br />WriteToFile.writeFileByLines(fileName);<br />}<br />}<br />

 

 

其實這麼重要的東西，應該死記在心裡的。不過記的東西太多了。還是放在BLOGGER上好了。呵呵。。BLOGGER，小倉庫。。^^