建造者模式

public class Builder {

	/**
	 * @param args 建造者模式
	 */
	
private PersonBuilder pBuilder;
public Builder (PersonBuilder pBuilder) {
	this.pBuilder=pBuilder;
}
public void creat() {
	pBuilder.builda();
	pBuilder.buileb();
}
	
	public static void main(String[] args) {
		// TODO Auto-generated method stub

		PersonA a=new PersonA(3, 4);
		Builder facade=new Builder(a);
		facade.creat();
		

}
}


abstract class PersonBuilder{
	protected int a;
	protected int b;
	public PersonBuilder (int a,int b) {
		this.a=a;
		this.b=b;
	}
	
	public abstract void builda();
	public abstract void buileb();
}

class PersonA extends PersonBuilder{

	public PersonA(int a, int b) {
		super(a, b);
		// TODO Auto-generated constructor stub
	}

	@Override
	public void builda() {
		System.out.println("aaaaa");
		
	}

	@Override
	public void buileb() {
		// TODO Auto-generated method stub
		System.out.println("bbbb");
	}
	
	
}
class PersonB extends PersonBuilder{

	public PersonB(int a, int b) {
		super(a, b);
		// TODO Auto-generated constructor stub
	}

	@Override
	public void builda() {
		System.out.println("aaaaa2");
		
	}

	@Override
	public void buileb() {
		// TODO Auto-generated method stub
		System.out.println("bbbb2");
	}
	
	
}