You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
38 lines
849 B
38 lines
849 B
/**
|
|
* 泛型 Pair 类，用于存储两个相关联的对象
|
|
* @param <K> 键类型
|
|
* @param <V> 值类型
|
|
*/
|
|
public class Pair<K, V> {
|
|
private K key;
|
|
private V value;
|
|
|
|
public Pair(K key, V value) {
|
|
this.key = key;
|
|
this.value = value;
|
|
}
|
|
|
|
public K getKey() {
|
|
return key;
|
|
}
|
|
|
|
public V getValue() {
|
|
return value;
|
|
}
|
|
|
|
/**
|
|
* 交换 key 和 value 的值（注意：仅适用于可互换类型的场景）
|
|
* 注意：如果 K 和 V 类型不同，交换后可能语义不一致
|
|
*/
|
|
public void swap() {
|
|
// 使用 Object 临时存储，再交换
|
|
Object temp = key;
|
|
key = value;
|
|
value = (V) temp; // 强转，需确保类型兼容
|
|
}
|
|
|
|
@Override
|
|
public String toString() {
|
|
return "(" + key + ", " + value + ")";
|
|
}
|
|
}
|
|
|