2019獨角獸企業重金招聘Python工程師標準>>>

/***?@Title:?Calculation.java*?@Package?com.wangbiao.design.factory*?@Description:?TODO?*?@author?wangbiao???*?@date?2014-9-24?下午11:16:27?*?@version?V1.0*/ package?com.wangbiao.design.factorymethod;/***?@Title:?Calculation.java*?@Package?com.wangbiao.design.factory*?@Description:?TODO?*?@author?wangbiao???*?@date?2014-9-24?下午11:16:27?*?@version?V1.0*/ public?abstract?class?Calculation?{private?double??num1;private?double??num2;public?double?getNum1()?{return?num1;}public?void?setNum1(double?num1)?{this.num1?=?num1;}public?double?getNum2()?{return?num2;}public?void?setNum2(double?num2)?{this.num2?=?num2;}public?abstract?double?getResult();}class?AddOperation?extends?Calculation{@Overridepublic?double?getResult()?{return?this.getNum1()?+this.getNum2();}}class?SubOperation?extends?Calculation{@Overridepublic?double?getResult()?{return?this.getNum1()-?this.getNum2();}}class?MulOperation?extends?Calculation{@Overridepublic?double?getResult()?{return?this.getNum1()?*?this.getNum2();}}class?DivOperation?extends?Calculation{@Overridepublic?double?getResult()?{if(this.getNum2()?!=?0){return?this.getNum1()?/?this.getNum2();}else{System.out.println("分母不能為零");return?0;}}}/***?@Title:?IFactory.java*?@Package?com.wangbiao.design.factorymethod*?@Description:?TODO?*?@author?wangbiao???*?@date?2014-9-24?下午11:46:26?*?@version?V1.0*/ package?com.wangbiao.design.factorymethod;/***?@Title:?IFactory.java*?@Package?com.wangbiao.design.factorymethod*?@Description:?TODO?*?@author?wangbiao???*?@date?2014-9-24?下午11:46:26?*?@version?V1.0*/ public?interface?IFactory?{public?Calculation?creatOperation(); }class?AddFactory?implements?IFactory{@Overridepublic?Calculation?creatOperation()?{return?new?AddOperation();} }class?SubFactory?implements?IFactory{@Overridepublic?Calculation?creatOperation()?{return?new?SubOperation();} }class?MulFactory?implements?IFactory{@Overridepublic?Calculation?creatOperation()?{return?new?MulOperation();} }class?DivFactory?implements?IFactory{@Overridepublic?Calculation?creatOperation()?{return?new?DivOperation();} }/***?@Title:?Client.java*?@Package?com.wangbiao.design.factorymethod*?@Description:?TODO?*?@author?wangbiao???*?@date?2014-9-24?下午11:44:30?*?@version?V1.0*/ package?com.wangbiao.design.factorymethod;/***?@Title:?Client.java*?@Package?com.wangbiao.design.factorymethod*?@Description:?TODO?*?@author?wangbiao???*?@date?2014-9-24?下午11:44:30?*?@version?V1.0*/ public?class?Client?{/***?@param?args*/public?static?void?main(String[]?args)?{//?TODO?Auto-generated?method?stubIFactory?factory?=?new?AddFactory();Calculation?cal?=?factory.creatOperation();cal.setNum1(1);cal.setNum2(2);System.out.println(cal.getResult());}}

轉載于:https://my.oschina.net/u/617909/blog/318349

總結

以上是生活随笔為你收集整理的java设计模式_工厂方法的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。