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我編寫了一個簡單的android應用程序,它接受數字數據的輸入並將其存儲在SQLite數據庫中,我如何計算總數並將其顯示給用戶。從Android中的SQLite數據計算總數
下面是輸入
String title = expenseTitle.getText().toString();
String amount = expenseAmount.getText().toString();
Date date = new Date(datePicker.getYear() - 1900, datePicker.getMonth(), datePicker.getDayOfMonth());
String dateString = date.toString();
Database myDb = new Database(getApplicationContext());
SQLiteDatabase expenseDB = myDb.getWritableDatabase();
ContentValues contentValues = new ContentValues();
contentValues.put(Database.EXPENSE_TITLE, title);
contentValues.put(Database.EXPENSE_AMOUNT, amount);
contentValues.put(Database.EXPENSE_DATE, dateString);
expenseDB.insert(Database.TABLE_NAME, null, contentValues);
感謝名單達米安的代碼,就像一個魅力 – user973916