From a96d6dae79e42c248100d021705f6ad0273dcefb Mon Sep 17 00:00:00 2001
From: GaoGeng <3123557312@qq.com>
Date: Mon, 1 Jun 2026 09:12:41 +0800
Subject: [PATCH] =?UTF-8?q?=E4=B8=8A=E4=BC=A0=E6=96=87=E4=BB=B6=E8=87=B3?=
 =?UTF-8?q?=20'W7'?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 W7/Account.java                    | 31 ++++++++++++++++++++++++++++++
 W7/InsufficientFundsException.java | 12 ++++++++++++
 2 files changed, 43 insertions(+)
 create mode 100644 W7/Account.java
 create mode 100644 W7/InsufficientFundsException.java

diff --git a/W7/Account.java b/W7/Account.java
new file mode 100644
index 0000000..8fca49f
--- /dev/null
+++ b/W7/Account.java
@@ -0,0 +1,31 @@
+public class Account {
+    private double balance;
+
+    public Account(double balance) {
+        this.balance = balance;
+    }
+
+    public void withdraw(double amount) throws InsufficientFundsException {
+        if (amount > balance) {
+            throw new InsufficientFundsException(balance);
+        }
+        balance -= amount;
+        System.out.println("取款成功，当前余额: " + balance);
+    }
+
+    public static void main(String[] args) {
+        Account account = new Account(1000.0);
+        
+        try {
+            account.withdraw(1500.0);
+        } catch (InsufficientFundsException e) {
+            System.out.println("取款失败: " + e.getMessage() + "，当前余额: " + e.getBalance());
+        }
+
+        try {
+            account.withdraw(500.0);
+        } catch (InsufficientFundsException e) {
+            System.out.println("取款失败: " + e.getMessage() + "，当前余额: " + e.getBalance());
+        }
+    }
+}
\ No newline at end of file
diff --git a/W7/InsufficientFundsException.java b/W7/InsufficientFundsException.java
new file mode 100644
index 0000000..0dbc1f2
--- /dev/null
+++ b/W7/InsufficientFundsException.java
@@ -0,0 +1,12 @@
+public class InsufficientFundsException extends Exception {
+    private double balance;
+
+    public InsufficientFundsException(double balance) {
+        super("余额不足");
+        this.balance = balance;
+    }
+
+    public double getBalance() {
+        return balance;
+    }
+}
\ No newline at end of file