Java - 라디오 예제 (객체 개념 활용)

public class RadioTest {
	
	public static void main(String[] args)	{
		Radio britz = new Radio();
		britz.setChannel(89.1);
		britz.setVolume(12);
		britz.setOnOff(true);
		
		System.out.println("브리츠라디오");
		System.out.println("라디오가"+britz.getString()+"있습니다.");
		System.out.println("현재 채널은"+britz.getChannel()+"입니다.");
		System.out.println("현재 볼륨은"+britz.getVolume()+"입니다.");
		System.out.println();
		
		Radio iriver = new Radio();
		iriver.setChannel(95.1);
		iriver.setVolume(9);
		iriver.setOnOff(false);
		
		System.out.println("아이리버 라디오");
		System.out.println("라디오가" +iriver.getString()+"에 있습니다.");
		System.out.println("현재 채널은"+iriver.getChannel()+"입니다.");
		System.out.println("현재 볼륨은"+iriver.getVolume()+"입니다.");
		
	}
}

public class Radio{
	
	private boolean onOff;
	private double channel;
	private int volume;
	
	public double getChannel() {
		return channel;
	}
	public void setChannel(double ch) {
		channel = ch;
	}
	public int getVolume() {
		return volume;
	}
	public void setVolume(int vol) {
		volume = vol;
	}
	public boolean getonoff() {
		return onOff;
	}
	public void setOnOff(boolean onOff) {
		this.onOff = onOff;
	}
	public String getString() {
		String str = onOff == true?"켜져":"꺼져";
		return str;
	}
}