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package net.dongliu.commons.lang.collection;

/**
 * pair with members key and value.
 * 
 *     {@code Pair pair = Pair.of("test", 1);}
 * 
 *
 * @author Dong Liu
 */
public class Pair {
    private K key;
    private V value;

    public static  Pair of(S key, T value) {
        Pair pair = new Pair<>();
        pair.setKey(key);
        pair.setValue(value);
        return pair;
    }

    public K getKey() {
        return key;
    }

    public void setKey(K key) {
        this.key = key;
    }

    public V getValue() {
        return value;
    }

    public void setValue(V value) {
        this.value = value;
    }

    @Override
    public String toString() {
        return String.valueOf(key) + " -> " + String.valueOf(value);
    }
}