// Example 126 from page 95

//

import java.awt.Color;

class Example126 {

public static void main(String[] args) {

LabelPoint<String> p1 = new LabelPoint<String>(5, 117, "home"),

p2 = new LabelPoint<String>(2, 3, "work");

LabelPoint<Double> p3 = new LabelPoint<Double>(10, 100, 3.1415);

ColorLabelPoint<String,Integer> p4 =

new ColorLabelPoint<String,Integer>(20, 30, "foo", 0x0000FF);

ColorLabelPoint<String,Color> p5 =

new ColorLabelPoint<String,Color>(40, 50, "bar", Color.BLUE);

Movable[] movables = { p1, p2, p3, p4, p5 };

LabelPoint<String>[] stringpoints; // Legal

// stringpoints = new LabelPoint<String>[3]; // Illegal

}

}

interface Movable {

void move(int dx, int dy);

}

class LabelPoint<L> implements Movable {

protected int x, y;

private L lab;

public LabelPoint(int x, int y, L lab) {

this.x = x; this.y = y; this.lab = lab;

}

public void move(int dx, int dy) {

x += dx; y += dy;

}

public L getLab() {

return lab;

}

}

class ColorLabelPoint<L, C> extends LabelPoint<L> {

private C c;

public ColorLabelPoint(int x, int y, L lab, C c) {

super(x, y, lab);

this.c = c;

}

}