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Copy pathBankAccount.java
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120 lines (98 loc) · 3.57 KB
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public class BankAccount {
// property
private int balance;
private Person owner;
// method
public BankAccount(int pBalance) {
balance = Math.max(pBalance, 0);
}
public BankAccount(Person pOwner) {
owner = pOwner;
balance = 0;
}
public BankAccount(int pBalance, Person pOwner) {
if (pBalance < 0) {
balance = 0;
} else {
balance = pBalance;
}
owner = pOwner;
}
public int getBalance() {
return balance;
}
public void setBalance(int pBalance) {
balance = pBalance;
}
public Person getOwner() {
return owner;
}
public void setOwner(Person pOwner) {
owner = pOwner;
}
// 파라미터: 입금할 액수(정수)
// 리턴: 성공여부(불린)
boolean deposit(int amount) {
if (amount >= 0 && amount <= owner.getCashAmount()) {
balance += amount;
owner.setCashAmount(owner.getCashAmount() - amount);
System.out.println(amount + "원 입금하였습니다. 잔고: " + balance + "원, 현금: " + owner.getCashAmount() + "원");
return true;
} else {
System.out.println("입금 실패입니다. 잔고: " + balance + "원, 현금: " + owner.getCashAmount() + "원");
return false;
}
}
// public boolean depositUSD(double amount, double exchangeRate) {
// // int 로 casting
// return deposit((int) (amount*exchangeRate));
// }
//
// public boolean depositJPN(double amount, double exchangeRate) {
// // int 로 casting
// return deposit((int) (amount*exchangeRate));
// }
// 메소드 오버로딩 (method overloading) - 클래스 내에 같은 이름의 메소드를 2개 이상 정의
// 이름은 같지만 파라미터 개수가 다르다.
public boolean deposit(double amount, double exchangeRate) {
System.out.println(
"deposit with exchange rate"
);
return deposit((int) (amount * exchangeRate));
}
// 파라미터: 출금할 액수(정수)
// 리턴: 성공여부(불린)
boolean withdraw(int amount) {
if (amount >= 0 && amount <= balance) {
balance -= amount;
owner.setCashAmount(owner.getCashAmount() + amount);
System.out.println(amount + "원 출금하였습니다. 잔고: " + balance + "원, 현금: " + owner.getCashAmount() + "원");
return true;
} else {
System.out.println("출금 실패입니다. 잔고: " + balance + "원, 현금: " + owner.getCashAmount() + "원");
return false;
}
}
// 첫 번째 파라미터: 받는 사람 (Person)
// 두 번째 파라미터: 이체할 금액 (정수)
// 리턴 : 성공여부 (불린)
public boolean transfer(BankAccount to, int amount) {
boolean success; // 성공 여부를 보관하는 변수 정의
if (amount < 0 || amount > balance) {
success = false;
} else {
balance -= amount;
to.balance += amount;
success = true;
}
System.out.println(success + " - from: " + owner.getName()
+ ", to: " + to.owner.getName()
+ ", amount: " + amount
+ ", balance: " + balance);
return success;
}
// account와 account 간의 거래이므로, Person to의 정보를 to의 account 정보로 바꾸어 호출.
public boolean transfer(Person to, int amount) {
return transfer(to.getAccount(), amount);
}
}