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package reflect;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
public class Test {
 public static void main(String[] args) {
  try {
   Class c = Class.forName("reflect.Student");// ¸ù¾ÝÀàµÄÍêÕûÀàÃû´´½¨ÀàÏó
   Object obj = (Student) c.newInstance();// ʵÀý»¯Àà,Ç¿ÖÁÀàÐÍת»»
   System.out.println(obj);
   Method met = c.getMethod("sayHi", new Class[] { String.class });// µÃµ½Ãû×ÖΪsayHiµÄ·½·¨
   String say = (String) met.invoke(obj, new Object[] { "ss" });//µ÷Ó÷½·¨µÃµ½·µ»ØÖµ
   System.out.println(say);
  } catch (ClassNotFoundException e) {
   // TODO ×Ô¶¯Éú³É catch ¿é
   e.printStackTrace();
  } catch (InstantiationException e) {
   // TODO ×Ô¶¯Éú³É catch ¿é
   e.printStackTrace();
  } catch (IllegalAccessException e) {
   // TODO ×Ô¶¯Éú³É catch ¿é
   e.printStackTrace();
  } catch (SecurityException e) {
   // TODO ×Ô¶¯Éú³É catch ¿é
   e.printStackTrace();
  } catch (NoSuchMethodException e) {
   // TODO ×Ô¶¯Éú³É catch ¿é
   e.printStackTrace();
  } catch (IllegalArgumentException e) {
   // TODO ×Ô¶¯Éú³É catch ¿é
   e.printStackTrace();
  } catch (InvocationTargetException e) {
   // TODO ×Ô¶¯Éú³É catch ¿é
   e.printStackTrace();
  }
 }
}
class Student {
 private int age;
 private String name;
 public int getAge() {
  return age;
 }
 public void setAge(int age) {
  this.age = age;
 }
 public String getName() {
  return name;
 }
 public void setName(String name) {
  this.name = name;
 }
 pub


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Closing a URLClassLoader
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import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpMethod;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.URIException;
import org.apache.commons.httpclient.methods.GetMethod;
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