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Retranslate the complete English edition from Simplified Chinese (#2010)

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* Retranslate the complete English edition from Simplified Chinese

* Polish three English explanations after reader-focused review
This commit is contained in:
Yudong Jin
2026-10-31 03:35:51 +08:00
committed by GitHub
parent ef46e2ed95
commit 14c314c08c
1502 changed files with 29459 additions and 23517 deletions
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36
en/codes/java/chapter_hashing/hash_map.java
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@@ -11,40 +11,40 @@ import utils.*;
public class hash_map {
public static void main(String[] args) {
/* Initialize hash table */
/* Initialize the hash table */
Map<Integer, String> map = new HashMap<>();
/* Add operation */
// Add key-value pair (key, value) to the hash table
map.put(12836, "Xiao Ha");
map.put(15937, "Xiao Luo");
map.put(16750, "Xiao Suan");
map.put(13276, "Xiao Fa");
map.put(10583, "Xiao Ya");
System.out.println("\nAfter adding is complete, hash table is\nKey -> Value");
/* Insert operation */
// Insert the key-value pair (key, value) into the hash table
map.put(12836, "小哈");
map.put(15937, "小啰");
map.put(16750, "小算");
map.put(13276, "小法");
map.put(10583, "小鸭");
System.out.println("\nHash table after insertion:\nKey -> Value");
PrintUtil.printHashMap(map);
/* Query operation */
// Input key into hash table to get value
/* Lookup operation */
// Look up key in the hash table to obtain value
String name = map.get(15937);
System.out.println("\nInput student ID 15937, query name " + name);
System.out.println("\nLook up student ID 15937 to obtain the name " + name);
/* Remove operation */
// Remove key-value pair (key, value) from hash table
// Remove the key-value pair (key, value) from the hash table
map.remove(10583);
System.out.println("\nAfter removing 10583, hash table is\nKey -> Value");
System.out.println("\nHash table after removing 10583:\nKey -> Value");
PrintUtil.printHashMap(map);
/* Traverse hash table */
System.out.println("\nTraverse key-value pairs Key->Value");
/* Traverse the hash table */
System.out.println("\nTraverse key-value pairs: Key->Value");
for (Map.Entry<Integer, String> kv : map.entrySet()) {
System.out.println(kv.getKey() + " -> " + kv.getValue());
}
System.out.println("\nTraverse keys only Key");
System.out.println("\nTraverse keys only: Key");
for (int key : map.keySet()) {
System.out.println(key);
}
System.out.println("\nTraverse values only Value");
System.out.println("\nTraverse values only: Value");
for (String val : map.values()) {
System.out.println(val);
}