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"Writing Java Programs for Dynamic Content Handling"
Vol 1, Issue 1, P.33

	

Listing 1

class Shape extends Object {
	// Some Class Data containing attributes
	public void draw( Graphics g ) {
		// No code here...
	}
}

Listing 2

class Rectangle extends Shape {
	public void draw( Graphics g ) {
		// Shape specific code goes here
	}
}

Listing 3

public interface Drawable {
	public void draw( Graphics g );
	public void init( String params );
}

public MyObject extends SomeOtherObject implements Drawable {
	public void draw( Graphics g ) {
		// Object specific code goes here...
	}
	// Some other related stuff may go here...
}

Listing 4

obj.init( line );
//... get a Graphics object from somewhere...
obj.draw(g);

 

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