public class javabean {
    public static void main(String[] args) {
        //调用无参构造器
        javabean j=new javabean();
        j.setName("豆豆");
        j.setSalary(100000);
        j.setHeight(162);

        //调用有参构造器
        javabean j1=new javabean("dd",162,1000);
    }
    //1.成员变量建议使用private私有
    private String name;
    private double height;
    private double salary;

    //2.为成员变量提供getter和setter方法
    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public double getHeight() {
        return height;
    }

    public void setHeight(double height) {
        this.height = height;
    }

    public double getSalary() {
        return salary;
    }

    public void setSalary(double salary) {
        this.salary = salary;
    }

    //3.必须提供无参构造器，有参构造器可选.直接右键->Generare->constructor就可以自动生成

    //无参构造器
    public javabean() {

    }
    //有参构造器
    public javabean(String name, double height, double salary) {
        this.name = name;
        this.height = height;
        this.salary = salary;
    }
}