四：创建型模式：建造者模式

     今天介绍的是建造者模式，一起跟我看代码，然后练习，然后感悟，就会学会这个模式。

     IComputerBuilder接口：

package com.liuqiang.model.builder;

public interface IComputerBuilder {
	void buildDisplayer();
	void buildHost();
	void buildKeyBoard();
	void buildMouse();
	Computer buildComputer();
}

      NoteBookBuilder类：

package com.liuqiang.model.builder;

public class NoteBookBuilder implements IComputerBuilder {
	Computer computer;
	public NoteBookBuilder(){
		computer = new NoteBook();
	}
	@Override
	public void buildDisplayer() {
		System.out.println("先来安装显示器");
	}

	@Override
	public void buildHost() {
		System.out.println("再来安装主机");
	}

	@Override
	public void buildKeyBoard() {
		System.out.println("然后搭配上键盘也不错");
	}

	@Override
	public void buildMouse() {
		System.out.println("最后加上鼠标就NICE了");
	}

	@Override
	public Computer buildComputer() {
		return computer;
	}

}

      ComputerDirector类：

package com.liuqiang.model.builder;

public class ComputerDirector {
	public Computer constructComputer(NoteBookBuilder builder){
		builder.buildDisplayer();
		builder.buildHost();
		builder.buildKeyBoard();
		builder.buildMouse();
		return builder.buildComputer();
	}
}

       Computer类：

package com.liuqiang.model.builder;

public class Computer {
	private String displayer;
	private String host;
	private String keyboard;
	private String mouse;
	public String getDisplayer() {
		return displayer;
	}
	public void setDisplayer(String displayer) {
		this.displayer = displayer;
	}
	public String getHost() {
		return host;
	}
	public void setHost(String host) {
		this.host = host;
	}
	public String getKeyboard() {
		return keyboard;
	}
	public void setKeyboard(String keyboard) {
		this.keyboard = keyboard;
	}
	public String getMouse() {
		return mouse;
	}
	public void setMouse(String mouse) {
		this.mouse = mouse;
	}
	
}

         NoteBook类：

package com.liuqiang.model.builder;

public class NoteBook extends Computer {

}

       最后的测试类，Test类：

package com.liuqiang.model.builder;

public class Test {
	public static void main(String[] args) {
		ComputerDirector cd = new ComputerDirector();
		Computer computer = cd.constructComputer(new NoteBookBuilder());
		computer.getDisplayer();
		computer.getHost();
		computer.getKeyboard();
		computer.getMouse();
	}
}

测试结果如下：

先来安装显示器
再来安装主机
然后搭配上键盘也不错
最后加上鼠标就NICE了

     欢迎大家一起和我进行交流，学习，欢迎大家指出不足之处，请联系QQ：497820217 备注：优快云。
     本文为原创，如需要转载，请注明出处。