Can't insert DateTime to SQLite on Android Studio

i am a newbie programmer for Android Studio, here i have some problem with my programs, i want to insert some DateTime type to my SQLite table, but when i want to insert it using ContentValue, the compiler read it as an error statement. it said "Can't resolve method 'put(java.lang.string,java.sql.date)" i don't know how to solve this problem, even i have searching for some answer but still unsolved.

Please master, gimme some answer. Thanks before.

NB. here is my code

public class DatabaseHelper extends SQLiteOpenHelper {
public static final String MyVillageSoftware = "MyVillageSoftware";
public static final String DATABASE_NAME = "Cashflow.db";
public static final String TABLE_Categ_NAME = "category_table";
public static final String TABLE_Trans_NAME = "transaction_table";
public static final String COL1 = "CategId";
public static final String COL2 = "CategName";
public static final String COL3 = "Note";
public static final String COL4 = "Currency";
public static final String COL5 = "_id";
//TOL for transaction Coloumn
public static final String TOL1 = "TransId";
public static final String TOL2 = "TransName";
public static final String TOL3 = "Amount";
public static final String TOL4 = "TransNote";
public static final String TOL5 = "TransDate";
public static final String TOL6 = "CategId";
public static final String TOL7 = "_id";
private static final String TAG = DatabaseHelper.class.getSimpleName();
SQLiteDatabase db;


public DatabaseHelper(Context context) {
    super(context, DATABASE_NAME, null, 6);


}

@Override
public void onCreate(SQLiteDatabase db) {

    db.execSQL("Create table " + TABLE_Categ_NAME +
            " (CategID Integer PRIMARY KEY AUTOINCREMENT, " +
            "CategName Text," +
            " Note Text," +
            " Currency Text," +
            " _id Text)");

    db.execSQL("Create table " + TABLE_Trans_NAME +
            " (TransID Integer PRIMARY KEY AUTOINCREMENT, " +
            "TransName Text," +
            " Amount Integer," +
            " TransNote Text," +
            " TransDate Datetime," +
            " CategID Integer, " +
            " _id Text)");
}

public boolean insertCategData(String categname, String note, String currency, String id){
    SQLiteDatabase db = this.getWritableDatabase();
    ContentValues contentValues = new ContentValues();
    contentValues.put(COL2, categname);
    contentValues.put(COL3, note);
    contentValues.put(COL4, currency);
    contentValues.put(COL5, id);
    long result = db.insert(TABLE_Categ_NAME, null, contentValues);
     if (result == -1)
         return false;
     else
         return true;

}

public boolean insertTransData (String transname, Integer amount, String transnote, Date transdate, Integer categid, String id){
    SQLiteDatabase db = this.getWritableDatabase();
    ContentValues contentValues = new ContentValues();
    contentValues.put(TOL1, transname);
    contentValues.put(TOL2, amount);
    contentValues.put(TOL3, transnote);

    //PROBLEMS COME FROM HERE
    contentValues.put(TOL4, transdate);
    contentValues.put(TOL5, categid);
    contentValues.put(TOL6, id);
    long result = db.insert(TABLE_Categ_NAME, null, contentValues);
    if (result == -1)
        return false;
    else
        return true;

}

public List<String> getAllCategory() {
    List<String> AllCategoryList = new ArrayList<String>();

        String selectQuery = "SELECT * FROM " + TABLE_Categ_NAME;
        SQLiteDatabase db = this.getReadableDatabase();
        Cursor cursor = db.rawQuery(selectQuery, null);

        if (cursor.moveToFirst()) {
            do {

                String ID = cursor.getString(0);
                String Categ = cursor.getString(1);
                String Note = cursor.getString(2);
                String Curr = cursor.getString(3);
                AllCategoryList.add(Categ);

            } while (cursor.moveToNext());
        }
        cursor.close();
        db.close();
        return AllCategoryList;
    }

@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
    db.execSQL("DROP TABLE IF EXISTS " + TABLE_Categ_NAME);
    onCreate(db);

}

}