Java tutorial
//package com.java2s; import android.content.Context; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; public class Main { public static boolean writeFile(Context context, String fileName, String content) { boolean success = false; FileOutputStream fos = null; try { fos = context.openFileOutput(fileName, Context.MODE_PRIVATE); byte[] byteContent = content.getBytes(); fos.write(byteContent); success = true; } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } finally { try { if (fos != null) fos.close(); } catch (IOException ioe) { ioe.printStackTrace(); } } return success; } public static boolean writeFile(String filePath, String content) { boolean success = false; FileOutputStream fos = null; try { fos = new FileOutputStream(filePath); byte[] byteContent = content.getBytes(); fos.write(byteContent); success = true; } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } finally { try { if (fos != null) fos.close(); } catch (IOException ioe) { ioe.printStackTrace(); } } return success; } }