CRUD Operation in SQLite Database in Hindi (Android)

public void insertData(String name, int age) {
    SQLiteDatabase db = this.getWritableDatabase();
    ContentValues values = new ContentValues();
    values.put("name", name);
    values.put("age", age);
    db.insert("students", null, values);
    db.close();
}

public Cursor getAllData() {
    SQLiteDatabase db = this.getReadableDatabase();
    return db.rawQuery("SELECT * FROM students", null); 
}

public void updateData(int id, String newName, int newAge) {
    SQLiteDatabase db = this.getWritableDatabase();
    ContentValues values = new ContentValues();
    values.put("name", newName);
    values.put("age", newAge);
    db.update("students", values, "id=?", new String[]{String.valueOf(id)});
    db.close();
}

public void deleteData(int id) {
    SQLiteDatabase db = this.getWritableDatabase();
    db.delete("students", "id=?", new String[]{String.valueOf(id)});
    db.close();
}