项目执行中遇到的困境：Java异常处理实例

原创偏执的太偏执、 2024-12-09 19:48 1阅读 0赞

在Java编程过程中，异常处理是确保程序稳定和用户友好体验的重要手段。下面是一个具体的异常处理实例：

```java
public class BankAccount {
    private double balance;

// 构造函数，初始化账户
    public BankAccount(double initialBalance) throws InsufficientFundsException {
        if (initialBalance < 0) {
            throw new IllegalArgumentException("Initial balance cannot be negative.");
        }
        this.balance = initialBalance;
    }

// 方法：存款
    public void deposit(double amount) {
        if (amount < 0) {
            System.out.println("Deposit amount cannot be negative.");
            return;
        }
        this.balance += amount;
        System.out.println("Successfully deposited " + amount + ". New balance: " + this.balance);
    }

// 方法：取款
    public void withdraw(double amount) throws InsufficientFundsException {
        if (amount < 0) {
            System.out.println("Withdrawal amount cannot be negative.");
            return;
        }
        if (this.balance - amount < 0) {
            System.out.println("Insufficient funds for withdrawal of " + amount + ".");
            throw new InsufficientFundsException();
        }
        this.balance -= amount;
        System.out.println("Successfully withdrew " + amount + ". New balance: " + this.balance);
    }

// 自定义异常类
    public class InsufficientFundsException extends Exception {
        public InsufficientFundsException(String message) {
            super(message);
        }
    }
}
```

在这个例子中，我们创建了一个`BankAccount`类，它有一个`balance`属性。在构造函数和方法中，我们处理了各种可能的异常，如初始余额为负、存款金额为负、取款金额超出账户余额等。