android 学习笔记 数据存储到文件中

<pre name="code" class="java">           public void save() {

String data = "Data to save";
FileOutputStream out = null;

BufferedWriter writer = null;
try {

out = openFileOutput("data", Context.MODE_PRIVATE);
writer = new BufferedWriter(new OutputStreamWriter(out));

writer.write(data);
} catch (IOException e) {

e.printStackTrace();
} finally {

try {
if (writer != null) {

writer.close();
}

} catch (IOException e) {
e.printStackTrace();

}
}

}

public String load() {

FileInputStream in = null;
BufferedReader reader = null;

StringBuilder content = new StringBuilder();
try {

in = openFileInput("data");
reader = new BufferedReader(new InputStreamReader(in));

String line = "";
while ((line = reader.readLine()) != null) {

content.append(line);
}

} catch (IOException e) {
e.printStackTrace();

} finally {
if (reader != null) {

try {
reader.close();

} catch (IOException e) {
e.printStackTrace();

}
}

}
return content.toString();

}

}