String getName()
    //返回构造方法名

T newinstance(Object... initargs)
    //使用此构造函数和指定参数创建并初始化对象

package Demo01;
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import java.lang.reflect.Constructor;
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/**
 * @author :K；
 */
public class Student {
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    public Student() {
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    }
    public Student(String name){
        System.out.println("输入的姓名为："+name);
    }
    private Student(int age){
        System.out.println("你的年龄为："+age);
    }
}

package Demo01;
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import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
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public class Reflect_GetConstructor {
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    public static void main(String[] args) throws ClassNotFoundException, NoSuchMethodException, IllegalAccessException, InvocationTargetException, InstantiationException {
            //1.获取Student类的字节码文件对象
            //2.根据字节码文件对象，获取指定的构造器对象
            //3.根据构造器对象和参数，创建对应的Student对象
        Class aClass = Class.forName("Demo01.Student");
        System.out.println(aClass.getName());
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            //获取公共的无参构造
        Constructor constructor01 = aClass.getConstructor();
        System.out.println(constructor01);
            //获得公共的有参构造
        Constructor constructor02 = aClass.getConstructor(String.class);
        System.out.println(constructor02);
            //获取私有的有参构造
        Constructor declaredConstructor = aClass.getDeclaredConstructor(int.class);
        System.out.println(declaredConstructor);
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            //获取所有的构造方法，除去私有的构造方法
        Constructor[] constructors = aClass.getConstructors();
        for(Constructor constructor:constructors){
            System.out.println(constructor);
        }
        System.out.println("-------------");
            //构造器对象
        System.out.println(constructor01);
        String name = constructor01.getName();
            //构造器的名字
        System.out.println(name);
            //根据构造器对象和参数，创建对应的Student对象
        Student stu = (Student) constructor02.newInstance("李白");
            //打印输出结果
        System.out.println(stu);
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    }
}