Add kotlin code for the chapter of hashing (#1104)

* feat(kotlin): add kotlin code for dynamic programming. * Update knapsack.kt * feat(kotlin): add kotlin codes for graph. * style(kotlin): reformatted the codes. * feat(kotlin): add kotlin codes for the chapter of greedy. * Update max_product_cutting.kt * feat(kotlin): add kotlin code for chapter of hashing. * style(kotlin): modified some comment * Update array_hash_map.kt * Update hash_map_chaining.kt * Update hash_map_chaining.kt
2026-08-15 21:20:58 +00:00 · 2024-03-12 14:08:15 +08:00
parent cf0817370b
commit eadf4c86d4
6 changed files with 579 additions and 0 deletions
@@ -0,0 +1,50 @@
+/**
+ * File: hash_map.kt
+ * Created Time: 2024-01-25
+ * Author: curtishd (1023632660@qq.com)
+ */
+
+package chapter_hashing
+
+import utils.printHashMap
+
+/* Driver Code */
+fun main() {
+    /* 初始化哈希表 */
+    val map: MutableMap<Int, String> = HashMap()
+
+    /* 添加操作 */
+    // 在哈希表中添加键值对 (key, value)
+    map[12836] = "小哈"
+    map[15937] = "小啰"
+    map[16750] = "小算"
+    map[13276] = "小法"
+    map[10583] = "小鸭"
+    println("\n添加完成后，哈希表为\nKey -> Value")
+    printHashMap(map)
+
+    /* 查询操作 */
+    // 向哈希表中输入键 key ，得到值 value
+    val name = map[15937]
+    println("\n输入学号 15937 ，查询到姓名 $name")
+
+    /* 删除操作 */
+    // 在哈希表中删除键值对 (key, value)
+    map.remove(10583)
+    println("\n删除 10583 后，哈希表为\nKey -> Value")
+    printHashMap(map)
+
+    /* 遍历哈希表 */
+    println("\n遍历键值对 Key->Value")
+    for ((key, value) in map) {
+        println("$key -> $value")
+    }
+    println("\n单独遍历键 Key")
+    for (key in map.keys) {
+        println(key)
+    }
+    println("\n单独遍历值 Value")
+    for (value in map.values) {
+        println(value)
+    }
+}