| 4个方法的具体实施和建一层房子的不同
class TwoStoryHouse extends HouseBuilder {
public TwoStoryHouse(String features) {
house.setType(this.getClass() + " " + features);
}
public void buildFoundation() {
//doEngineering()
//doExcavating()
//doPlumbingHeatingElectricity()
//doSewerWaterHookUp()
//doFoundationInspection()
house.setProgress("foundation is done");
}
public void buildFrame() {
//doHeatingPlumbingRoof()
//doElectricityRoute()
//doDoorsWindows()
//doFrameInspection()
house.setProgress("frame is under construction");
}
public void buildExterior() {
//doOverheadDoors()
//doBrickWorks()
//doSidingsoffitsGutters()
//doDrivewayGarageFloor()
//doDeckRail()
//doLandScaping()
house.setProgress("Exterior is waiting to start");
}
public void buildInterior() {
//doAlarmPrewiring()
//doBuiltinVacuum()
//doInsulation()
//doDryWall()
//doPainting()
//doLinoleum()
//doCabinet()
//doTileWork()
//doLightFixtureBlinds()
//doCleaning()
//doInteriorInspection()
house.setProgress("Interior is not started yet");
}
}
class House {
private String type = null;
private List features = new ArrayList();
public House() {
}
public House(String type) {
this.type = type;
}
public void setType(String type) {
this.type = type;
}
public String getType() {
return type;
}
public void setProgress(String s) {
features.add(s);
}
public String toString() {
StringBuffer ff = new StringBuffer();
String t = type.substring(6);
ff.append(t + "n ");
for (int i = 0; i < features.size(); i ++) {
ff.append(features.get(i) + "n ");
}
return ff.toString();
}
}
class TestBuilder {
public static void main(String[] args) {
HouseBuilder one = new OneStoryHouse("2 bedrooms, 2.5 baths, 2-car garage, 1500 sqft");
HouseBuilder two = new TwoStoryHouse("4 bedrooms, 4 baths, 3-car garage, 5000 sqft");
WorkShop shop = new WorkShop();
shop.construct(one);
shop.construct(two);
System.out.println("Check house building progress: n");
System.out.println(one.showProgress());
System.out.println(two.showProgress());
}
}
Java设计模式（二）(4)
时间:2011-01-01 yeeyan 翻译:易晓斓
//需要用jdk1.5以上来编译
C:> javac TestBuilder.java
C:> java TestBuilder
//运行结果
Check house building progress:
OneStoryHouse 2 bedrooms, 2.5 baths, 2-car garage, 1500 sqft
foundation is done
frame is done
Exterior is done
Interior is under going
TwoStoryHo
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