hello-algo/codes/kotlin/chapter_hashing/hash_map.kt
curtishd eadf4c86d4
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
2024-03-12 14:08:15 +08:00

50 lines
No EOL
1.2 KiB
Kotlin

/**
* 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)
}
}