commit aabc9bbbb2b533d7fbaa53ee94b8b2ac87f9e677
Author: Fuyuxinge <1876397977@qq.com>
Date:   Thu May 14 17:16:25 2026 +0800

    初次提交：泛型类Java代码

diff --git a/kv.java b/kv.java
new file mode 100644
index 0000000..42ffdf1
--- /dev/null
+++ b/kv.java
@@ -0,0 +1,31 @@
+package w8;
+
+public class Pair<K, V> {
+    private K key;
+    private V value;
+
+    public Pair(K key, V value) {
+        this.key = key;
+        this.value = value;
+    }
+
+    public Pair<V, K> swap() {
+        return new Pair<>(this.value, this.key);
+    }
+
+    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;
+    }
+}
diff --git a/kv1.java b/kv1.java
new file mode 100644
index 0000000..3693f2e
--- /dev/null
+++ b/kv1.java
@@ -0,0 +1,32 @@
+package w8;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class Cache<K, V> {
+    private final Map<K, V> cacheMap;
+
+    public Cache() {
+        cacheMap = new HashMap<>();
+    }
+
+    public void put(K key, V value) {
+        cacheMap.put(key, value);
+    }
+
+    public V get(K key) {
+        return cacheMap.get(key);
+    }
+
+    public void remove(K key) {
+        cacheMap.remove(key);
+    }
+
+    public void clear() {
+        cacheMap.clear();
+    }
+
+    public int size() {
+        return cacheMap.size();
+    }
+}
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