package d18_3_1;

import java.lang.reflect.Constructor;

import java.util.Arrays;

/**

 * 获取构造器的四个方法

 *

 * 运行结果如下

 * [private d18_3_1.Test2(), public d18_3_1.Test2(java.lang.String,int,java.lang.String), public d18_3_1.Test2(java.lang.String,int), protected d18_3_1.Test2(java.lang.String)]

 * protected d18_3_1.Test2(java.lang.String)

 * [public d18_3_1.Test2(java.lang.String,int,java.lang.String), public d18_3_1.Test2(java.lang.String,int)]

 * public d18_3_1.Test2(java.lang.String,int)

 */

public class ClassInfo1 {

	public static void main(String[] args) throws NoSuchMethodException, SecurityException {

		// 获取构造器的四个方法

		Class c = Test2.class;

		// 1 获取所有的构造器，不论是否私有

		Constructor[] dcs1 = c.getDeclaredConstructors();

		System.out.println(Arrays.toString(dcs1));

		// 2获取在所有构造器中，指定的构造器

		Constructor dc1=c.getDeclaredConstructor(String.class);

		System.out.println(dc1);

		// 3 获取所有public构造器

		Constructor[] dcs2 = c.getConstructors();

		System.out.println(Arrays.toString(dcs2));

		// 4在所有public构造器中，获取指定的构造器

		Constructor dc2=c.getConstructor(String.class,int.class);

		System.out.println(dc2);

	}

}

class Test2 {

	private String name;

	private int age;

	String sex;

	private Test2() {

	}

	protected Test2(String name) {

		super();

		this.name = name;

	}

	public Test2(String name, int age) {

		super();

		this.name = name;

		this.age = age;

	}

	public Test2(String name, int age, String sex) {

		super();

		this.name = name;

		this.age = age;

		this.sex = sex;

	}

	public String getName() {

		return name;

	}

	public void setName(String name) {

		this.name = name;

	}

	public int getAge() {

		return age;

	}

	public void setAge(int age) {

		this.age = age;

	}

	@Override

	public String toString() {

		return "Test [name=" + name + ", age=" + age + "]";

	}

}