Java 5.0 ·ºÐÍÖ® Java·ºÐ͵ÄǶÌ×ÉèÖÃ

package Demo;
// Java·ºÐ͵ÄǶÌ×ÉèÖÃ
class Info31<T, V> { // ½ÓÊÕÁ½¸ö·ºÐÍÀàÐÍ
private T key;
private V value;
public Info31(T key, V value) {
this.setKey(key);
this.setValue(value);
}
public void setKey(T key) {
this.key = key;
}
public void setValue(V value) {
this.value = value;
}
public T getKey() {
return this.key;
}
public V getValue() {
return this.value;
}
}
class Demo31<S> {
private S info;
public Demo31(S info) {
this.setInfo(info);
}
public void setInfo(S info) {
this.info = info;
}
public S getInfo() {
return this.info;
}
}
public class GenericsDemo31 {
public static void main(String args[]) {
Demo31<Info31<Integer, String>> d = null; // ½«Info×÷ΪDemoµÄ·ºÐÍÀàÐÍ
Info31<Integer, String> i = null; // InfoÖ¸¶¨Á½¸ö·ºÐÍÀàÐÍ
i = new Info31<Integer, String>(99, "it"); // ʵÀý»¯Info¶ÔÏó
d = new Demo31<Info31<Integer, String>>(i); // ÔÚDemoÀàÖÐÉèÖÃInfoÀàµÄ¶ÔÏó
System.out.println(" Key Of Integer : " + d.getInfo().getKey());
System.out.println(" Value Of String : " + d.getInfo().getValue());
}
}