鍦↗ava涓紝HashMap鏄竴绉嶅父鐢ㄧ殑鏁版嵁缁撴瀯锛岀敤浜庡瓨鍌ㄩ敭鍊煎銆備互涓嬫槸浣跨敤HashMap鐨勪竴浜涘熀鏈搷浣滐細

1. 鍒涘缓涓€涓狧ashMap瀵硅薄锛?/li>

HashMap<String, Integer> map = new HashMap<>();

2. 娣诲姞閿€煎鍒癏ashMap涓細

map.put("key1", 1);
map.put("key2", 2);
map.put("key3", 3);

3. 浠嶩ashMap涓幏鍙栧€硷細

int value = map.get("key1");
System.out.println(value); // 杈撳嚭锛?

4. 妫€鏌ashMap涓槸鍚﹀寘鍚煇涓敭锛?/li>

boolean containsKey = map.containsKey("key2");
System.out.println(containsKey); // 杈撳嚭锛歵rue

5. 閬嶅巻HashMap涓殑鎵€鏈夐敭鍊煎锛?/li>

for (Map.Entry<String, Integer> entry : map.entrySet()) {
    String key = entry.getKey();
    int value = entry.getValue();
    System.out.println(key + " : " + value);
}

6. 鍒犻櫎HashMap涓殑鏌愪釜閿€煎锛?/li>

map.remove("key3");

7. 鑾峰彇HashMap涓殑閿泦鍚堝拰鍊奸泦鍚堬細

Set<String> keySet = map.keySet();
Collection<Integer> values = map.values();

杩欎簺鏄疕ashMap鐨勪竴浜涘熀鏈敤娉曪紝鍙互鏍规嵁鍏蜂綋闇€瑕佽繘琛岀浉搴旂殑鎿嶄綔鍜屾墿灞曘€侶ashMap杩樻湁寰堝鍏朵粬鏂规硶鍜屽姛鑳斤紝鍙互鏌ラ槄瀹樻柟鏂囨。杩涜浜嗚В銆?/p>