package constructorCleanup;

import boki.util.print.Print;

class Shape {

Shape(int i) {

Print.print("Shape constructor ");

}

void dispose() {

Print.print("Shape dispose");

}

}

class Circle extends Shape {

Circle(int i) {

super(i);

Print.print("Drawing Circle ");

}

void dispose() {

Print.print("Erasing Circle ");

super.dispose();

}

}

class Triangle extends Shape {

Triangle(int i) {

super(i);

Print.print("Drawing Triangle ");

}

void dispose() {

Print.print("Erasing Triangle ");

super.dispose();

}

}

class Line extends Shape {

private int start, end;

Line(int start, int end) {

super(start);

this.start = start;

this.end = end;

Print.print("Drawing Line: " + start + "," + end);

}

void dispose() {

Print.print("Erasing Line: " + start + "," + end);

super.dispose();

}

}

public class CADSystem extends Shape{

private Circle c;

private Triangle t;

private Line[] lines = new Line[3];

public CADSystem(int i) {

super(i+1);

for(int j = 0; j < lines.length; j++) {

lines[j] = new Line(j,j*j);

}

c = new Circle(1);

t = new Triangle(1);

Print.print("Combine constructor");

}

void dispose() {

Print.print("CAD dispose");

c.dispose();

t.dispose();

for(Line line : lines) {

line.dispose();

}

super.dispose();

}

public static void main(String[] args) {

CADSystem x = new CADSystem(1);

try {

} finally {

x.dispose();

}

}

}