ExpenseUndo undoExpense = new ExpenseUndo(expenseId); //initialize with expense ID if (undoExpense.canUndo()) { undoExpense.undo(); //undo the expense }
Expense newExpense = new Expense(description, amount); //initialize new expense newExpense.save(); //save new expense to database ExpenseUndo makeUndoable = new ExpenseUndo(newExpense.id); //initialize with expense ID makeUndoable.makeUndoable(); //mark expense as undoableThis code creates a new expense object and saves it to the database. Then, using Chummer ExpenseUndo, it marks the expense as undoable for future use. Chummer ExpenseUndo seems to be a custom library/package developed specifically for finance management systems to provide easy and efficient undo functionality for expenses.