Solution to practice midterm

TestDigitalWallet.java

public class TestDigitalWallet {

    public static void main(String[] args) {
        DigitalWallet w1 = new DigitalWallet(1);
        w1.deposit(10000);
        w1.withdraw(5000);
        DigitalWallet.setMaxWithdrawalPct(.75);
        System.out.println(w1.canWithdraw(4000)); // false

        DigitalWallet w2 = new DigitalWallet(2, 20000);
        w2.withdraw(5000);
        w2.withdraw(5000);
        long[] txs = w2.getTransactionHistory().getTransactions();
        int sum = 0;
        for(int i = 0; i < txs.length ; ++i) {
            sum += txs[i];
        }
        if(sum == w2.getBalance()) {
            System.out.println("Balance equals sum of transactions.");
        }
    }

}