利用java生成构造函数

class Student{

public String name;

public int age;

public String setNum;

public Student(){

System.out.println("不带参数的构造方法......");

}

//利用idea的高效开发效率，右键选生成，选择构造函数，直接生成。

public Student(int age, String setNum, String name) {

this.age = age;

this.setNum = setNum;

this.name = name;

System.out.println("不带参数的构造方法......");

}

}

public class Test {

public static void main(String[] args) {

Student student1 = new Student();

Student student2 = new Student(19,"1234","zhangsan");

}

}