tv.java

经典书籍《Head First 设计模式》的附书源码

package headfirst.command.remote;

public class TV {
	String location;
	int channel;

	public TV(String location) {
		this.location = location;
	}

	public void on() {
		System.out.println("TV is on");
	}

	public void off() {
		System.out.println("TV is off");
	}

	public void setInputChannel() {
		this.channel = 3;
		System.out.println("Channel is set for VCR");
	}
}