bird.java

来自「初学者很好的一本入门书籍」· Java 代码 · 共 21 行

public class Bird extends Animal
{
	static private int count;

	public Bird()
	{
		setLegs(4);
		setKind("Bird");
		count++;
	}
	
	public void move()
	{
		System.out.println("Flying");
	}

	static public int getCount()
	{
		return count;
	}
}