我要评论subject.java
package _20140416_;
import java.util.list;
public interface subject {
public string say(string name,int age);
public list<person> getalllist(string name);
}
realsubject.java
package _20140416_;
import java.util.arraylist;
import java.util.list;
public class realsubject implements subject {
private string name;
public realsubject(string name) {
this.name = name;
}
public string getname() {
return name;
}
public void setname(string name) {
this.name = name;
}
@override
public string say(string name, int age) {
return "名字:" + name + "_年龄:" + age;
}
@override
public list<person> getalllist(string name) {
list<person> list = new arraylist<person>();
list.add(new person("a", 20));
list.add(new person("b", 20));
list.add(new person("c", 20));
list.add(new person("d", 20));
system.out.println(name);
return list;
}
@override
public int hashcode() {
return 10010;
}
@override
public boolean equals(object obj) {
if(obj instanceof realsubject){
realsubject real = (realsubject)obj;
system.out.println("getname():"+real.getname());
system.out.println("this.name:"+this.name);
if(real.getname()==this.name){
system.out.println("相同");
}else{
system.out.println("不相同");
}
}
return true;
}
}
myinvercationhander.java
package _20140416_;
import java.lang.reflect.invocationhandler;
import java.lang.reflect.method;
import java.lang.reflect.proxy;
public class myinvercationhander implements invocationhandler{
private object obj;
public object bind(object obj){
this.obj=obj;
return proxy.newproxyinstance(obj.getclass().getclassloader(),obj.getclass().getinterfaces(),this);
}
@override
public object invoke(object proxy, method method, object[] args)
throws throwable {
object temp = method.invoke(this.obj, args);
//这里做切面操作 比如我要加功能
system.out.println("方法之前！");
return temp;
}
}
person.java
package _20140416_;
public class person {
private string name;
private int age;
public string getname() {
return name;
}
public void setname(string name) {
this.name = name;
}
public int getage() {
return age;
}
public void setage(int age) {
this.age = age;
}
public person(string name, int age) {
super();
this.name = name;
this.age = age;
}
}
maintest.java
package _20140416_;
import java.util.hashmap;
import java.util.iterator;
import java.util.map;
import java.util.set;
public class maintest {
public static void main(string[] args) {
subject subject = (subject) new myinvercationhander().bind(new realsubject("中国"));
system.out.println(subject.say("莫建锋",22));
system.out.println(subject.getalllist("张三"));
map<string,integer> mymap = new hashmap<string, integer>();
mymap.put("a",1);
mymap.put("b",2);
mymap.put("c",3);
mymap.put("d",4);
mymap.put("e",5);
set<map.entry<string,integer>> myentryset = mymap.entryset();
iterator<map.entry<string,integer>> it = myentryset.iterator();
while(it.hasnext()){
map.entry<string,integer> entry = it.next();
system.out.print(entry.getkey()+":");
system.out.println(entry.getvalue());
}
system.out.println(new realsubject("中国").hashcode());
system.out.println(new realsubject("中国").equals(new realsubject("中dd国")));
string info = new string("1");
string info1 = new string("1");
system.out.println(new integer('1'));
system.out.println(info.hashcode());
system.out.println(info1.hashcode());
system.out.println(info==info1);
system.out.println(info.equals(info1));
short i = 1;
system.out.println(i);
}
}
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