/**

* 泛型

*/

public class GenericsDemo {

public static void main(String[] args) {

Pair<Integer, String> pair = new Pair<>(1, "apple");

Pair<Integer, String> pair1 = new Pair<>(2, "Pear");

boolean isSame;

if (compare(pair, pair1)) isSame = true;

else isSame = false;

System.out.println(isSame);

}

public static <K, V> boolean compare(Pair<K, V> p1, Pair<K, V> p2) {

return p1.getKey().equals(p2.getKey()) &&

p1.getValue().equals(p2.getValue());

}

}

class Pair<K, V> {

private K key;

private V value;

public Pair(K key, V value) {

this.key = key;

this.value = value;

}

public void setKey(K key) {

this.key = key;

}

public void setValue(V value) {

this.value = value;

}

public K getKey() {

return key;

}

public V getValue() {

return value;

}

}