Question

我正在尝试实现通用的HashTable。在我的代码中，数组中有节点。我正在尝试使用通用Node类在默认构造函数中初始化数组的大小。我正在尝试在没有@SuppressWarnings

的情况下解决这些警告

我已经尝试过table = (Node<K,V>[]) new Object[capacity];，但收到相同的警告：

这就是我所拥有的：

public class HashTable<K,V> implements Table<K,V>{

private static final int INIT_CAPACITY = 4;
private int n;
public int tableSize; 
public Node<K,V>[] table;

public HashTable(){
    this(INIT_CAPACITY);
}

public HashTable(int capacity){
    this.tableSize = capacity;
    this.n = 0;
    //table = (Node<K,V>[]) new Object[capacity]; // Also gives warnings
    table = (Node<K,V>[]) new Node[capacity]; // Warnings occur here
}

和我的通用节点类：公共类Node {

public K nodeKey; // key
public V nodeValue; // value
Node<K,V> next;


public Node(){

}

public Node(K key, V value, Node<K,V> next){
    this.nodeKey = key;
    this.nodeValue = value;
    this.next = next;
}


public K getKey(){
    return nodeKey;
}

public V getValue(){
    return nodeValue;
}

}

谢谢！这是我编译时得到的：

HashTable.java:17: warning: [rawtypes] found raw type: Node table = (Node<K,V>[]) new Node[capacity]; ^ missing type arguments for generic class Node<K,V> where K,V are type-variables: K extends Object declared in class Node V extends Object declared in class Node HashTable.java:17: warning: [unchecked] unchecked cast table = (Node<K,V>[]) new Node[capacity]; ^ required: Node<K,V>[] found: Node[] where K,V are type-variables: K extends Object declared in class HashTable V extends Object declared in class HashTable 2 warnings

如何处理原始类型和未经检查的警告？

0 个答案: