(完整版)上机练习1

上机练习11题目：使用简单工厂模式设计一个可以创建不同几何形状 （如圆形、方形和三角形等）的绘图工具，每个几何图形都要有绘制 draw()和擦除erase()两个方法，要求在绘制不支持的几何图形时，提示一个 UnSupportedException。publicclassClient{publicstaticvoidmain(Stringargs[]){try{tuxingtx;Stringshape=XMLUtiltx.getshape();tx=txFducetx(shape);tx.draw();tx.erase();}catch(Exceptione){}}}classXMLUtiltx{//该方法用于从XML配置文件中提取形状，并返回该形状名称publicstaticStringgetshape(){try{//创建文档对象DocumentBuilderFactory dFactory =DocumentBuilderFactory.newInstance();DocumentBuilderbuilder=dFactory.newDocumentBuilder();Documentdoc;doc=builder.parse(newFile("configtx.xml"));//获取包含图形名称的文本节点NodeListnl=doc.getElementsByTagName("shape");NodeclassNode=nl.item(0).getFirstChild();Stringshape=classNode.getNodeValue().trim();returnshape;}catch(Exceptione){e.printStackTrace();returnnull;}}}interfacetuxing{publicvoiddraw();publicvoiderase();}classtriangleimplementstuxing{publicvoiddraw(){正在绘制三角形");}publicvoiderase(){正在擦除三角形");}}classrectangleimplementstuxing{publicvoiddraw(){正在绘制方形");}publicvoiderase(){正在擦除方形");}}classcircleimplementstuxing{publicvoiddraw(){正在绘制圆形");}publicvoiderase(){正在擦除圆形");}}classtxFactory{publicstatictuxingproducetx(Stringshape)throwsException{if(shape.equalsIgnoreCase("triangle")){绘制三角形");returnnewtriangle();}elseif(shape.equalsIgnoreCase("rectangle")){绘制方形！");returnnewrectangle();}elseif(shape.equalsIgnoreCase("circle")){绘制圆形！");returnnewcircle();}else{thrownewException("对不起，不支持绘制该图形！ ");}}}题目：使用简单工厂模式模拟女娲（Nvwa）造人（Person），如果传入参数M，则返回一个Man对象，如果传入参数W，则返回一个Woman对象，用Java语言实现该场景。现需要增加一个新的Robot类，如果传入参数R，则返回一个Robot对象，对代码进行修改并注意女娲的变化。publicclassClient{publicstaticvoidmain(Stringargs[]){try{Peoplep;Stringsex=XMLUtilpeople.getsex();p=Nducepeople(sex);p.makepeople();}catch(Exceptione){}}}classXMLUtilpeople{//该方法用于从XML配置文件中提取性别，并返回该性别publicstaticStringgetsex(){try{//创建文档对象DocumentBuilderFactory dFactory =DocumentBuilderFactory.newInstance();DocumentBuilderbuilder=dFactory.newDocumentBuilder();Documentdoc;doc=builder.parse(newFile("configpeople.xml"));//获取包含性别的文本节点NodeListnl=doc.getElementsByTagName("sex");NodeclassNode=nl.item(0).getFirstChild();Stringsex=classNode.getNodeValue().trim();returnsex;}catch(Exceptione){e.printStackTrace();returnnull;}}}interfacePeople{publicvoidmakepeople();}classManimplementsPeople{publicvoidmakepeople(){女娲造人——男");}}classWomanimplementsPeople{publicvoidmakepeople(){女娲造人——女");}}classRobotimplementsPeople{publicvoidmakepeople(){女娲造人——机器人");}}classNvwa{publicstaticPeopleproducepeople(Stringsex)throwsException{if(sex.equalsIgnoreCase("M")){女娲造出一个男孩！");returnnewMan();}elseif(sex.equalsIgnoreCase("W")){女