LinkedHashMap get() Values in Java

In Java, you can retrieve values from a LinkedHashMap using the get() method. For example:

LinkedHashMap<String, Integer> map = new LinkedHashMap<>();
map.put("A", 1);
map.put("B", 2);
map.put("C", 3);

int value = map.get("B");
System.out.println(value); // 输出：2

In the example above, we first put key-value pairs into a LinkedHashMap and then use the get() method to retrieve the corresponding value by key. The getValue() method returns the value associated with the specified key, or null if the key doesn’t exist.