I recommend to create a method just for inserting and than use ContentValues. For further info https://www.tutorialspoint.com/android/android_sqlite_database.htm
public boolean insertToTable(String DESCRIPTION, String AMOUNT, String TRNS){
SQLiteDatabase db = this.getWritableDatabase();
ContentValues contentValues = new ContentValues();
contentValues.put("this is",DESCRIPTION);
contentValues.put("5000",AMOUNT);
contentValues.put("TRAN",TRNS);
db.insert("Your table name",null,contentValues);
return true;
}