account.java

JAVA 2入门经典 练习答案

// Defines a customer account.
public class Account {
  // Constructor:
  public Account(int accountNumber, int balance) {
    this.accountNumber = accountNumber;            // Set the account number.
    this.balance = balance;                        // Set the initial balance.
  }

  // Return the current balance:
  public int getBalance() {
    return balance;
  }

  // Set the current balance:
  public void setBalance(int balance) {
    this.balance = balance;
  }

  public int getAccountNumber() {
    return accountNumber;
  }

  public String toString() {
    return "A//C No. "+accountNumber+" : $"+balance;
  }

  private int balance;                             // The current account balance.
  private int accountNumber;                       // Identifies this account.
}