From c8780aa992614b35d9203ca54b66c5397ae16a62 Mon Sep 17 00:00:00 2001
From: LeiJuntao <2606542098@qq.com>
Date: Tue, 28 Apr 2026 11:34:04 +0800
Subject: [PATCH] W8

---
 W8/Pair.java | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 W8/Pair.java

diff --git a/W8/Pair.java b/W8/Pair.java
new file mode 100644
index 0000000..976abea
--- /dev/null
+++ b/W8/Pair.java
@@ -0,0 +1,26 @@
+public class Pair<K, V> {
+    private K key;
+    private V value;
+
+    // 构造方法
+    public Pair(K key, V value) {
+        this.key = key;
+        this.value = value;
+    }
+
+    // Getter 和 Setter
+    public K getKey() { return key; }
+    public V getValue() { return value; }
+    public void setKey(K key) { this.key = key; }
+    public void setValue(V value) { this.value = value; }
+
+    @Override
+    public String toString() {
+        return "(" + key + ", " + value + ")";
+    }
+
+    // 静态交换方法
+    public static <T, U> Pair<U, T> swap(Pair<T, U> p) {
+        return new Pair<>(p.getValue(), p.getKey());
+    }
+}