public class TV {


	public int width;
	public int height;
	public int depth;
	public int channel = 0;
	public boolean powered = false;

    public TV(int width, int height, int channel) {
        this.width = width;
        this.height = height;
        this.channel = channel;
    }

	public boolean powerOn(boolean powered) {
        if (powered = false) {
            powered = true;
            System.out.println("The TV is now on.");
        } else {
            System.out.println("the TV is already on.");
        }
        return powered;
    }

    public boolean powerOff(boolean powered) {
        if (powered) {
            powered = false;
        }
        return powered;
    }

    public int channelUp() {
        ++channel;
        if (channel > 99) channel = 0;
        return channel;
    }

    public int channelDown() {
        --channel;
        if (channel < 0) channel = 99;
        return channel;
    }
}