abstract class AbsClass
{
	public abstract void AbsPrint();  //定義抽象方法
}

class kk extends AbsClass
{
	public void AbsPrint() 
		{System.out.println("This is the use of Abstract Class");};
}

public class UseAbsClass
{
	public static void main(String [] args)
	{
		kk b=new kk();
		b.AbsPrint();
	}
}