tv.java

来自「深入浅出设计模式」· Java 代码 · 共 24 行

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");
	}
}