public class javabean {
    public static void main(String[] args) {
        //呼叫無參構造器
        javabean j=new javabean();
        j.setName("豆豆");
        j.setSalary(100000);
        j.setHeight(162);

        //呼叫有參構造器
        javabean j1=new javabean("dd",162,1000);
    }
    //1.成員變數建議使用private私有
    private String name;
    private double height;
    private double salary;

    //2.為成員變數提供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.必須提供無參構造器，有參構造器可選.直接右鍵->Generare->constructor就可以自動生成

    //無參構造器
    public javabean() {

    }
    //有參構造器
    public javabean(String name, double height, double salary) {
        this.name = name;
        this.height = height;
        this.salary = salary;
    }
}