(二)方法1
public?void?method1()?{
FileWriter?fw?=?null;
try?{
//如果文件存在，則追加內容；如果文件不存在，則創建文件
File?f=new?File("E:\dd.txt");
fw?=?new?FileWriter(f,?true);
}?catch?(IOException?e)?{
e.printStackTrace();
}
PrintWriter?pw?=?new?PrintWriter(fw);
pw.println("追加內容");
pw.flush();
try?{
fw.flush();
pw.close();
fw.close();
}?catch?(IOException?e)?{
e.printStackTrace();
}
}
(三)方法2
public?static?void?method2(String?file,?String?conent)?{
BufferedWriter?out?=?null;
try?{
out?=?new?BufferedWriter(new?OutputStreamWriter(
new?FileOutputStream(file,?true)));
out.write(conent+"\r\n");
}?catch?(Exception?e)?{
e.printStackTrace();
}?finally?{
try?{
out.close();
}?catch?(IOException?e)?{
e.printStackTrace();
}
}
}
(四)方法3
public?static?void?method3(String?fileName,?String?content)?{
try?{
//?打開一個隨機訪問文件流，按讀寫方式
RandomAccessFile?randomFile?=?new?RandomAccessFile(fileName,?"rw");
//?文件長度，字節數
long?fileLength?=?randomFile.length();
//?將寫文件指針移到文件尾。
randomFile.seek(fileLength);
randomFile.writeBytes(content+"\r\n");
randomFile.close();
}?catch?(IOException?e)?{
e.printStackTrace();
}
}
}
