清除Model类

Question

我有一个模型类＆＃34; JobPostBean＆＃34;我在另一个模型类中启动并使用第二个模型类添加数据。我想清除任何保存在＆＃34; JobPostBean＆＃34;类。有没有办法在＆＃34; JobPostBean＆＃34;中清除它？类或在第二个模型类中初始化？我宁愿使用单一方法清除它，而不是设置＆＃34; JobPostBean＆＃34;中的每一项。 class为null。

＆＃13;

＆＃13;

public class BidNextJobDataModel {
    private static BidNextJobDataModel ourInstance = new BidNextJobDataModel();

    public static BidNextJobDataModel getInstance() {
        return ourInstance;
    }

    private BidNextJobDataModel() {

    }

    
    public UserBean userBean;
    // Here I initialised the class
    public JobPostBean jobPostBean = new JobPostBean();

    public ArrayList<FilterModel> filterModelArrayList = new ArrayList<FilterModel>();
    public ArrayList<FilterModel> notificationModelArrayList = new ArrayList<FilterModel>();
    public ArrayList<FilterModel> chooseCategoryArrayList = new ArrayList<FilterModel>();
    public ArrayList<JobsBean> jobsBeanArrayList = new ArrayList<JobsBean>();

   
}

＆＃13;

public class JobPostBean {
    private String jobtype="";
    private String days="";
    private String hour="";
    private String title="";
    private String category="";
    private String categorytxt="";
    private String description="";
    private String price="";
    private String duration="";
    private String is_certified="";
    private String is_insure="";
    private String is_experience="";
    private String address="";
    private String name="";
    private String image="";
    private String date="";
    private String pricetype="";

    public String getName() {
        return name;
    }

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

    public String getImage() {
        return image;
    }

    public void setImage(String image) {
        this.image = image;
    }

    public String getDate() {
        return date;
    }

    public void setDate(String date) {
        this.date = date;
    }

    public String getJobtype() {
        return jobtype;
    }

    public void setJobtype(String jobtype) {
        this.jobtype = jobtype;
    }

    public String getDays() {
        return days;
    }

    public void setDays(String days) {
        this.days = days;
    }

    public String getHour() {
        return hour;
    }

    public void setHour(String hour) {
        this.hour = hour;
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public String getCategory() {
        return category;
    }

    public void setCategory(String category) {
        this.category = category;
    }

    public String getCategorytxt() {
        return categorytxt;
    }

    public void setCategorytxt(String categorytxt) {
        this.categorytxt = categorytxt;
    }

    public String getDescription() {
        return description;
    }

    public void setDescription(String description) {
        this.description = description;
    }

    public String getPrice() {
        return price;
    }

    public void setPrice(String price) {
        this.price = price;
    }
    public String getDuration() {
        return duration;
    }

    public void setDuration(String duration) {
        this.duration = duration;
    }

    public String getIs_certified() {
        return is_certified;
    }

    public void setIs_certified(String is_certified) {
        this.is_certified = is_certified;
    }

    public String getIs_insure() {
        return is_insure;
    }

    public void setIs_insure(String is_insure) {
        this.is_insure = is_insure;
    }

    public String getIs_experience() {
        return is_experience;
    }

    public void setIs_experience(String is_experience) {
        this.is_experience = is_experience;
    }

    public String getAddress() {
        return address;
    }

    public void setAddress(String address) {
        this.address = address;
    }

    public String getPricetype() {
        return pricetype;
    }

    public void setPricetype(String pricetype) {
        this.pricetype = pricetype;
    }
}

＆＃13;

＆＃13;

＆＃13;

Answer 1

public ArrayList<JobPostBean > al_JobPostBean = new ArrayList<JobPostBean >(); // Declare as global 

首先在ArrayList中保存数据。如果要删除所有数据，则可以清除 ArrayList

 al_JobPostBean.clear();

  

clear（）方法删除了ArrayList的所有元素。