superdemo2.java

JAVA程序设计课程中各章节的程序实例。

/**
*super keyword
*2004.11.17. xhcprince
*/
class That
{
	protected String nm()
	{
		return "That";
	}
}

class More extends That
{
	protected String nm()
	{
		return "More";
	}

	protected void printNM()
	{
		That sref = (That)this;	

		System.out.println("this.nm() = " + this.nm());
		System.out.println("sref.nm() = " + sref.nm());
		System.out.println("super.nm() = " + super.nm());
	}
}

class superDemo2
{
	public static void main(String args[])
	{
		More more = new More();

		more.printNM();
	}
}