//產品編號
private?String?ChanPinBianHao;
//產品名稱
private?String?ChanPinName;
//產品單價
private?String?ChanPinDanJia;
//產品庫存
private?long?ChanPinKuCun;
/**
?*?私有化構造函數，供單例使用
?*/
private?ChanPinClass(){
}
private?static?ChanPinClass?cc?=?null;
/**
?*?可擴展的構造方法
?*?@param?obj
?*?@throws?Exception?
?*/
public?static?ChanPinClass?getChanPinClass(Object...?obj)?throws?Exception{
if(cc?==?null){
cc?=?new?ChanPinClass();
}
int?obj_length?=?obj.length;
if(obj_length?==?0){
}else?if(obj_length?==?1){
cc.setChanPinBianHao(String.valueOf(obj[0]));
}else?if(obj_length?==?2){
cc.setChanPinBianHao(String.valueOf(obj[0]));
cc.setChanPinName(String.valueOf(obj[1]));
}else?if(obj_length?==?3){
cc.setChanPinBianHao(String.valueOf(obj[0]));
cc.setChanPinName(String.valueOf(obj[1]));
cc.setChanPinDanJia(String.valueOf(obj[2]));
}else?if(obj_length?==?4){
cc.setChanPinBianHao(String.valueOf(obj[0]));
cc.setChanPinName(String.valueOf(obj[1]));
cc.setChanPinDanJia(String.valueOf(obj[2]));
cc.setChanPinKuCun(Long.valueOf(String.valueOf(obj[3])));
}else{
throw?new?Exception("參數不匹配!");
}
return?cc;
}
/**
?*?輸出產品信息
?*/
public?void?ChanPinMessagePrint(){
StringBuffer?sb?=?new?StringBuffer();
sb.append(this.getChanPinBianHao()?==?null?||?"".equals(this.getChanPinBianHao())"產品編號：無":"產品編號："?+?this.getChanPinBianHao()).append("\n");
sb.append(this.getChanPinName()?==?null?||?"".equals(this.getChanPinName())"產品名稱：無":"產品名稱："?+?this.getChanPinName()).append("\n");
sb.append(this.getChanPinDanJia()?==?null?||?"".equals(this.getChanPinDanJia())"產品單價：無":"產品單價："?+?new?java.text.DecimalFormat("#.00").format(Double.parseDouble(this.getChanPinDanJia()))).append("\n");
sb.append(this.getChanPinKuCun()?<=?0"產品庫存：無":"產品庫存："?+?this.getChanPinKuCun()).append("\n");
System.out.println(sb.toString());
}
public?String?getChanPinBianHao()?{
return?ChanPinBianHao;
}
public?void?setChanPinBianHao(String?chanPinBianHao)?{
ChanPinBianHao?=?chanPinBianHao;
}
public?String?getChanPinName()?{
return?ChanPinName;
}
public?void?setChanPinName(String?chanPinName)?{
ChanPinName?=?chanPinName;
}
public?String?getChanPinDanJia()?{
return?ChanPinDanJia;
}
public?void?setChanPinDanJia(String?chanPinDanJia)?{
ChanPinDanJia?=?chanPinDanJia;
}
public?long?getChanPinKuCun()?{
return?ChanPinKuCun;
}
public?void?setChanPinKuCun(long?hchanPinKuCunanPinKuCun)?{
ChanPinKuCun?=?hchanPinKuCunanPinKuCun;
}
}
public?class?ChanPinClassMain?{
public?static?void?main(String[]?args)?throws?Exception?{
ChanPinClass?ss?=?ChanPinClass.getChanPinClass(001,"娃娃菜",120.02);
//添加庫存
ss.setChanPinKuCun(12);
//輸出信息
ss.ChanPinMessagePrint();
}
}