Class类的创建方式有哪些

package cn.rushangw.reflection;

//测试Class类的创建方式有哪些
public class Test03 {
public static void main(String[] args) throws ClassNotFoundException {
Person person = new Student();
System.out.println("这个是:"+person.name);

//方式一:通过对象获得
Class c1 = person.getClass();
System.out.println(c1.hashCode());

//方式二:forname获得
Class c2 = Class.forName("cn.rushangw.reflection.Student");
System.out.println(c2.hashCode());

//方式三:通过类名.class获得
Class<Student> c3 = Student.class;
System.out.println(c3);

//方式四:基本内置类型的包装类都有一个Type属性
Class c4 = Integer.TYPE;
System.out.println(c4);

//获得父类类型
Class c5 = c1.getSuperclass();
System.out.println(c5);
}
}

class Person{
public String name;

public Person(String name) {
this.name = name;
}

public Person() {
}

@Override
public String toString() {
return "Person{" +
"name='" + name + '\'' +
'}';
}
}

class Student extends Person{
public Student() {
this.name = "学生";
}
}

class Teacher extends Person{
public Teacher() {
this.name = "老师";
}
}
posted @ 2021-06-13 15:42  逆骨111  阅读(221)  评论(0)    收藏  举报