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Java 5.0 ·ºÐÍÖ® Java·ºÐͽӿÚ

package Demo;
// Java·ºÐͽӿÚ
interface Info24<T> { // ÔÚ½Ó¿ÚÉ϶¨Òå·ºÐÍ
public T getVar(); // ¶¨Òå³éÏó·½·¨£¬³éÏó·½·¨µÄ·µ»ØÖµ¾ÍÊÇ·ºÐÍÀàÐÍ
}
class InfoImp24<T> implements Info24<T> { // ¶¨Òå·ºÐͽӿڵÄ×ÓÀà
private T var; // ¶¨ÒåÊôÐÔ
public InfoImp24(T var) { // ͨ¹ý¹¹Ôì·½·¨ÉèÖÃÊôÐÔÄÚÈÝ
this.setVar(var);
}
public void setVar(T var) {
this.var = var;
}
public T getVar() {
return this.var;
}
}
public class GenericsDemo24 {
public static void main(String arsg[]) {
Info24<String> i = null; // ÉùÃ÷½Ó¿Ú¶ÔÏó
i = new InfoImp24<String>("it"); // ͨ¹ý×ÓÀàʵÀý»¯¶ÔÏó
System.out.println("Length Of String : " + i.getVar().length());
}
}
package Demo;
// Java·ºÐͽӿÚ
interface Info25<T> { // ÔÚ½Ó¿ÚÉ϶¨Òå·ºÐÍ
public T getVar(); // ¶¨Òå³éÏó·½·¨£¬³éÏó·½·¨µÄ·µ»ØÖµ¾ÍÊÇ·ºÐÍÀàÐÍ
}
class InfoImp25 implements Info25<String> { // ¶¨Òå·ºÐͽӿڵÄ×ÓÀà
private String var; // ¶¨ÒåÊôÐÔ
public InfoImp25(String var) { // ͨ¹ý¹¹Ôì·½·¨ÉèÖÃÊôÐÔÄÚÈÝ
this.setVar(var);
}
public void setVar(String var) {
this.var = var;
}
public String getVar() {
return this.var;
}
}
public class GenericsDemo25 {
// ¸ÃÅú×¢µÄ×÷ÓÃÊǸø±àÒëÆ÷Ò»ÌõÖ¸Á¸æËßËü¶Ô±»Åú×¢µÄ´úÂëÔªËØÄÚ²¿µÄijЩ¾¯¸æ±£³Ö¾²Ä¬¡£
/*
* @description "deprecation" ʹÓÃÁ˲»ÔÞ³ÉʹÓõÄÀà»ò·½·¨Ê±µÄ¾¯¸æ
*
* @description "unchecked" Ö´ÐÐÁËδ¼ì²éµÄת»»Ê±µÄ¾¯¸æ£¬ÀýÈ統ʹÓü¯ºÏʱûÓÐÓ÷ºÐÍ (Generics)
* À´Ö¸¶¨¼¯ºÏ±£´æµÄÀàÐÍ¡£
*
* @description "fallthrough" µ± Switch ³ÌÐò¿éÖ±½ÓͨÍùÏÂÒ»ÖÖÇé¿ö¶øûÓÐ Break ʱµÄ¾¯¸æ¡£
*
* @description "path" ÔÚÀà·¾¶¡¢Ô´Îļþ·¾¶µÈÖÐÓв»´æÔڵķ¾¶Ê±µÄ¾¯¸æ¡£
*
* @description "serial" µ±ÔÚ¿ÉÐòÁл¯µÄÀàÉÏȱÉÙ serialVersionUID ¶¨ÒåʱµÄ¾¯¸æ¡£
*
* @description "finally" ÈκΠfinally ×Ӿ䲻ÄÜÕý³£Íê³ÉʱµÄ¾¯¸æ¡£
*
* @description "all" ¹ØÓÚÒÔÉÏËùÓÐÇé¿öµÄ¾¯¸æ¡£
*/
@SuppressWarnings("unchecked")
public static void main(String arsg[]) {
Info25 i = null; // ÉùÃ÷½Ó¿Ú¶ÔÏó
i = new


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Java 5.0 ·ºÐÍÖ® ÊÜÏÞ·ºÐÍ

package Demo;
// ÊÜÏÞ·ºÐÍ
class Info17<T> {
private T var; // ¶¨Òå·ºÐͱäÁ¿
public void setVar(T var) {
this.var = var;
}
public T getVar() {
return this.var;
}
public String toString() { // Ö±½Ó´òÓ¡
return this.var.toString();
}
}
public class GenericsDemo17 {
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