如何在java中迭代Hash Map对象时更新/设置新值

HashMap<String, String> hashMap = new HashMap<>();
hashMap.put("key1", "value1");
hashMap.put("key2", "value2");
hashMap.put("key3", "value3");

Iterator<Map.Entry<String, String>> iterator = hashMap.entrySet().iterator();
while (iterator.hasNext()) {
    Map.Entry<String, String> entry = iterator.next();
    String key = entry.getKey();
    String value = entry.getValue();
    
    // 根据需要更新/设置新值
    hashMap.put(key, "new value");
}

System.out.println(hashMap);

HashMap<String, String> hashMap = new HashMap<>();
hashMap.put("key1", "value1");
hashMap.put("key2", "value2");
hashMap.put("key3", "value3");

hashMap.forEach((key, value) -> {
    // 根据需要更新/设置新值
    hashMap.put(key, "new value");
});

System.out.println(hashMap);