Java反射机制:Constructor!

import org.junit.Test;
public class ConstructorTest {
@Test @SuppressWarnings("unchecked")
public void testConstructor(){
try {
Class clazz = Class.forName("cn.vicky.utils.User");
Method method = clazz.getDeclaredMethod("getName");
Constructor<? extends Live> constructor = clazz.getConstructor(String.class);
System.out.println(method.invoke(constructor.newInstance("Vicky")));
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SecurityException e) {
e.printStackTrace();
} catch (NoSuchMethodException e) {
e.printStackTrace();
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
} catch (InstantiationException e) {
e.printStackTrace();
}
}
}
abstract class Live{
String name;
public Live(String name) {
this.name = name;
}
public String getName() {
return name;
}

}
class User extends Live{
public User(String name) {
super(name);
}

public String getName() {
return " ---> " +name;
}

}
打印:
      ---> Vicky