은행 계좌(toString, 설정자, 접근자)

public class BankAccount {

private String name, accountNo;

private int balance;

private double rate;

 

public void setName(String n) { name = n;}

public void setAccountNo(String a) {accountNo = a;}

public void setBalance(int b) {balance = b;}

public void setRate(double r) {rate = r;}

 

public String getName() {return name;}

public String getAccountNo() {return accountNo;}

public int balance() {return balance;}

public double rate() {return rate;}

 

public String toString() {

String bank;

 

 bank = "이름: " + name + "\n계좌 번호: " + accountNo + "\n잔액: " + balance + "원\n이자율: " + rate + "%\n이자: " + calcInterest();

 

return bank;

 }

 

public int calcInterest() {

double interate;

interate = rate * (double)balance / 100;

 

return (int)interate;

 }

}

 

 

public class Practice_48 {

 

public static void main(String[] args) {

BankAccount b1 = new BankAccount();

BankAccount b2 = new BankAccount();

 

b1.setName("김동덕");

b1.setAccountNo("1234-5678");

b1.setBalance(100);

b1.setRate(0.0);

 

b2.setName("홍길동");

b2.setAccountNo("9999-2531");

b2.setBalance(2000);

b2.setRate(2.15);

 

System.out.println("첫 번째 은행 계좌의 정보입니다.");

System.out.println(b1.toString() + "\n");

System.out.println("두 번째 은행 계좌의 정보입니다.");

System.out.println(b2.toString());

 }

}

 

결과: