写第一轮考核作业，西瓜店的思考

首先是类的构建，遗忘

Booth a=new Booth(100010,"aaa",22,true);
Booth b=new Booth(100020,"bbb",23,false);
Booth c=new Booth(100030,"ccc",24,false);

接下来是数组构造，遗忘

Booth[] booths=new Booth[3];


然后就是类的方法构造有知识性遗忘

public Booth(long id,String name,int total,boolean isClosed) {

    this.id = id;
    this.name = name;
    this.total = total;
    this.isClosed = isClosed;


}
不要忘了下面这些

this.id = id;
    this.name = name;
    this.total = total;
    this.isClosed = isClosed;


然后没必要给抽象类赋值


然后就是toString(),是类似于getxx（），的得到值的，而不是输出值的

@Override
public String toString() {

    System.out.println();
    return "Booth{" +
            "id=" + id +
            ", name='" + name + '\'' +
            ", total=" + total +
            ", isClosed=" + isClosed +
            '}';


应该把toString（）放在sout里打印出来

System.out.println(i.toString());