写一个文件。JAVA安卓

在这段代码中，捕获IOException，但创建了文件。救命啊！谢谢大家的回答。

试试这个：

 final String rootPath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/Slots/";
    final File file = new File(rootPath);
    file.mkdirs();
    final File sdFile = new File(file, "Profile.txt");
try {
    BufferedWriter bw = new BufferedWriter(new FileWriter(sdFile));
    bw.write(edit.getText().toString() + "\n");
    bw.write("5000");
    } catch (IOException e) {
}

确保在清单文件中添加此权限：

 final String rootPath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/Slots/";
 final File file = new File(rootPath);
 file.mkdirs();
 final File sdFile = new File(file, "Profile.txt");
try {
        FileWriter fw = new FileWriter(sdFile);
        BufferedWriter bw = new BufferedWriter(fw);
        bw.write("hello "+"\n");
        bw.write("5000");
        bw.close();
    } catch (IOException e) {
        Log.e("exception ",e.getMessage());
    }

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那么例外是怎么说的呢？文件中有什么？请解释更多，并尝试用代码示例写一个更清楚的问题

 <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />