Constructor的反射问题 - 黑马程序员技术交流社区

package Testpackage;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import java.util.Date;
public class Test {
public static void main(String[] args) throws Exception {
// TODO Auto-generated method stub
Student a = new Student();
Class cls = a.getClass();
System.out.println(cls);
Method gstudy = cls.getMethod("study", null);
System.out.println(gstudy);
Constructor[] cons = Student.class.getConstructors(); //想要返回Student类中所有的构造方法，这样做为什么返回不了。。求解。
for (Constructor co : cons) {
System.out.println(co);
}
}
}
class Student {
private int grade;
private static int teststatic;
Student() {
this.grade = 0;
}
Student(int i) {
this.grade = i;
}
public void study() {
System.out.print("like study");
grade = 100;
teststatic = 0;
}
public void sleep() {
System.out.print("like sleep");
}
static void play() {
System.out.print("like play");
teststatic = 0;
}
}

复制代码