From 812353df51e98b3c2a57ee6816c0509926fca24d Mon Sep 17 00:00:00 2001
From: 86150 <86150@hunnu.edu.cn>
Date: Mon, 11 May 2026 17:03:41 +0800
Subject: [PATCH] =?UTF-8?q?=E4=B8=8A=E4=BC=A0W8?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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---
 W8/Pair.java | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 W8/Pair.java

diff --git a/W8/Pair.java b/W8/Pair.java
new file mode 100644
index 0000000..4cd0dde
--- /dev/null
+++ b/W8/Pair.java
@@ -0,0 +1,31 @@
+package com.example.crawler;
+public class Pair<K, V> {
+    private K key;
+    private V value;
+    public Pair(K key, V value) {
+        this.key = key;
+        this.value = value;
+    }
+    public K getKey() {
+        return key;
+    }
+    public void setKey(K key) {
+        this.key = key;
+    }
+    public V getValue() {
+        return value;
+    }
+    public void setValue(V value) {
+        this.value = value;
+    }
+    public static <K, V> Pair<V, K> swap(Pair<K, V> pair) {
+        return new Pair<>(pair.getValue(), pair.getKey());
+    }
+    @Override
+    public String toString() {
+        return "Pair{" +
+                "key=" + key +
+                ", value=" + value +
+                '}';
+    }
+}
\ No newline at end of file