Java基础学习-重载

public class Teacher {
    String name;
    int age;
    //构造方法
    public Teacher(String namea, int agea){
        System.out.println("调用有参构造方法");
        name =namea;
        age = agea;

    }
    //无参构造方法
    public Teacher(){
        System.out.println("调用无参构造方法");

    }
    public void teach(){
        System.out.println("上课");
    }
    public void teach(int a,String b){
        System.out.println("上课");
    }
    public void teach(String b,int a){
        System.out.println("上课");
    }
    public void teach(int a){
        System.out.println("上课");
    }

    public static void main(String[] args) {
        Teacher teacher = new Teacher();
        teacher.name="刘";
        teacher.age = 20;
        System.out.println(teacher.name);
        System.out.println(teacher.age);

        Teacher teacher2 = new Teacher("张",29);
        System.out.println(teacher2.name);
        System.out.println(teacher2.age);
    }

}