50 lines
1.2 KiB
Kotlin
50 lines
1.2 KiB
Kotlin
/**
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* File: hash_map.kt
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* Created Time: 2024-01-25
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* Author: curtishd (1023632660@qq.com)
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*/
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package chapter_hashing
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import utils.printHashMap
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/* Driver Code */
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fun main() {
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/* Initialize hash table */
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val map = HashMap<Int, String>()
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/* Add operation */
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// Add key-value pair (key, value) to the hash table
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map[12836] = "Ha"
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map[15937] = "Luo"
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map[16750] = "Suan"
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map[13276] = "Fa"
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map[10583] = "Ya"
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println("\nAfter adding, the hash table is\nKey -> Value")
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printHashMap(map)
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/* Query operation */
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// Enter key to the hash table, get value
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val name = map[15937]
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println("\nInput student ID 15937, found name $name")
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/* Remove operation */
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// Remove key-value pair (key, value) from the hash table
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map.remove(10583)
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println("\nAfter removing 10583, the hash table is\nKey -> Value")
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printHashMap(map)
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/* Traverse hash table */
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println("\nTraverse key-value pairs Key->Value")
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for ((key, value) in map) {
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println("$key -> $value")
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}
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println("\nIndividually traverse keys Key")
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for (key in map.keys) {
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println(key)
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}
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println("\nIndividually traverse values Value")
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for (_val in map.values) {
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println(_val)
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}
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} |