Java tutorial
//package com.java2s; import java.io.File; import android.content.Context; public class Main { public static void cleanDatabases(Context context) { deleteFilesByDirectory(new File("/data/data/" + context.getPackageName() + "/databases")); } private static void deleteFilesByDirectory(File directory) { if ((directory != null) && directory.exists() && directory.isDirectory()) { for (File item : directory.listFiles()) { item.delete(); } } } }