(一)建造者模式

构建类TVBuild：

package Builder;

public class TVBuild {

    private static TV tv;
    private static TVBuild tvBuild = new TVBuild();

    private TVBuild() {
    }

    public static TVBuild getInstance() {
        return tvBuild;
    }

    public TVBuild buildTV() {
        tv = new TV();
        return this;
    }


    public TVBuild setColor(String Color) {
        tv.setTvColor(Color);
        return this;
    }


    public TVBuild OpenTV(boolean bool) {
        tv.setOpen(bool);
        return this;
    }

    public TVBuild build() {
        System.out.println(tv.toString());
        return this;
    }

}

产品类：

class TV {
    @Override
    public String toString() {
        return "TVBuild{" +
                "tvColor='" + tvColor + '\'' +
                ", isOpen=" + isOpen +
                '}';
    }

    private String tvColor;
    private boolean isOpen;

    public String getTvColor() {
        return tvColor;
    }

    public void setTvColor(String tvColor) {
        this.tvColor = tvColor;
    }

    public boolean isOpen() {
        return isOpen;
    }

    public void setOpen(boolean open) {
        isOpen = open;
    }


}

运行：

import Builder.TVBuild;

public class Main {

    public static void main(String[] args) {
        TVBuild.getInstance().buildTV()
                .OpenTV(true)
                .setColor("red").build();
    }
}

输出：

TVBuild{tvColor='red', isOpen=true}