shape6 (Tester.java is same as before): Circle.java

/*
 * Definition of class Circle
 */

class Circle {

	private int x, y, rad;

	public Circle (int xin, int yin, int radin) {
		x = xin; y = yin;
		rad = radin;
	}

	public void setPos (int xin, int yin) { //*1 Use setter instead of direct access
		x = xin; y = yin; //*1
	}

	public void setSize (int radin) { //*1
		rad = radin; //*1
	}

	public void draw() {
		System.out.println ("Drawing circle at " + x + ", " + y
			+ ", radius = " + rad);
	}

	public float area() {
		return (float) (rad * rad * 3.14159);
	}
}
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