//電視機
public class Television{
	private double width = 0;//
	private double height = 0;
	private String factory;//
	private boolean isOpen = false;//
	
	public Television(double width,double height,
		String factory,boolean isOpen){
		this.width = width;
		this.height = height;
		this.factory = factory;
		this.isOpen = isOpen;  
	}
	
	public boolean openTV(){
		if(isOpen == false){
			isOpen = true;
		}
		
		return isOpen;
	}
	
	public static void main(String args[]){
		Television t = new Television(100.0,50.0,"Haier",false);
		t.openTV();
		System.out.println(t.isOpen);
	}
}