一个简单的 Java 程序，新手求解答

请问哪里出错了，该怎么修改，以及建议的地方。。。不胜感激

import java.util.Scanner; class Store{ private String name; private double size; private double price; private String pz; private int have; public Store(){ } public void setName(String name) { this.name = name; } public void setSize(double size) { this.size = size; } public void setPrice(double price) { this.price = price; } public void setPz(String pz) { this.pz = pz; } public void setHave(int have) { this.have = have; } public String getName() { return name; } public double getSize() { return size; } public double getPrice() { return price; } public String getPz() { return pz; } public int getHave() { return have; } } public class test { public static void main(String[] args){ Store[] store; store = creatStore(); printStore(store); } public static Store[] creatStore(){ Store[] store = new Store[3]; Scanner input = new Scanner(System.in); for(int i=0; i<3; i++) { String name; double size; double price; String pz; int have; name = input.nextLine(); size = input.nextDouble(); price = input.nextInt(); pz = input.nextLine(); have = input.nextInt(); store[i].setName(name); store[i].setSize(size); store[i].setPrice(price); store[i].setPz(pz); store[i].setHave(have); } return store; } public static void printStore(Store[] store){ System.out.println("品牌型号\t 尺寸\t 价格\t 配置\t 库存"); for(int i=0; i<3; i++) { System.out.println(store[i].getName()+"\t"+store[i].getSize()+"\t"+store[i].getPrice()+"\t"+store[i].getPz()+"\t"+store[i].getHave()); } } }