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QUIZ2-2041723004-M. Shafriza ladiyan #1

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38 changes: 38 additions & 0 deletions QUIZ/Circle.java
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package QUIZ;

public class Circle extends Shape {

protected double radius;

public Circle() {
super();
radius = 1.0;
}
public Circle(double radius) {
super();
this.radius = radius;
}
public Circle(double radius, String color, boolean filled) {
super(color, filled);
this.radius = radius;
}
public double getRadius() {
return radius;
}
public void setRadius(double radius) {
this.radius = radius;
}
@Override
public double getArea() {
return radius*radius*Math.PI;
}
@Override
public double getPerimeter() {
return 2 * radius * Math.PI;
}
@Override
public String toString() {
return String.format("Circle dengan radius = %f, merupakan subclas dari %s"
, radius, super.toString());
}
}
49 changes: 49 additions & 0 deletions QUIZ/Rectangle.java
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package QUIZ;

public class Rectangle extends Shape{

protected double width;
protected double length;

public Rectangle() {
super();
width = 1.0;
length = 1.0;
}
public Rectangle(double width, double length) {
super();
this.width = width;
this.length = length;
}
public Rectangle(double width, double length, String color, boolean filled){
super(color, filled);
this.width = width;
this.length = length;
}
public double getWidth() {
return width;
}
public void setWidth(double width) {
this.width = width;
}
public double getLength() {
return length;
}
public void setLength(double length) {
this.length = length;
}
@Override
public double getArea() {
return width * length;
}
@Override
public double getPerimeter() {
return 2 * (width+length);
}
@Override
public String toString() {
return String.format("Rectangle dengan lebar = %f dan panjang = %f, merupakan subclass dari %s"
, width, length,super.toString());
}
}
40 changes: 40 additions & 0 deletions QUIZ/Shape.java
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package QUIZ;

public abstract class Shape {

protected String color;
protected boolean filled;

public Shape() {
color = "red";
filled =true;
}

public Shape(String color, boolean filled) {
this.color = color;
this.filled = filled;
}

public String getColor() {
return color;
}
public void setColor(String color) {
this.color = color;
}

public boolean isFilled(){
return filled;
}
public void setFilled(boolean filled) {
this.filled = filled;
}

abstract public double getArea();
abstract public double getPerimeter();

@Override
public String toString() {
return String.format("Shape dengan warna %s dan %s",
color, (filled ? "terisi" : "tidak terisi"));
}
}
37 changes: 37 additions & 0 deletions QUIZ/Square.java
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package QUIZ;

public class Square extends Rectangle {

public Square() {
super();
}
public Square(double side) {
super(side, side);
}
public Square(double side, String color, boolean filled) {
super(side, side, color, filled);
}
public double getSide() {
return getWidth();
}
public void setSide(double side) {
setWidth(side);
setLength(side);
}
@Override
public void setWidth(double side) {
super.setWidth(side);
super.setLength(side);
}
@Override
public void setLength(double side) {
super.setWidth(side);
super.setLength(side);
}
@Override
public String toString() {
return String.format("Square dengan sisi = %f , merupakan subclass dari %s"
, width, super.toString());
}
}
59 changes: 59 additions & 0 deletions QUIZ/Test.java
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package QUIZ;

public class Test {
public static void main(String[] args) {

Shape shape1 = new Circle(5.5, "RED", true); // Upcast Circle ke Shape
System.out.println(shape1);
System.out.println(shape1.getArea());
System.out.println(shape1.getPerimeter());
System.out.println(shape1.getColor());
System.out.println(shape1.isFilled());
System.out.println("\n");

Circle circle1 = (Circle)shape1; // Downcast back ke Circle
System.out.println(circle1);
System.out.println(circle1.getArea());
System.out.println(circle1.getPerimeter());
System.out.println(circle1.getColor());
System.out.println(circle1.isFilled());
System.out.println(circle1.getRadius());
System.out.println("\n");

Shape shape2 = new Rectangle(1.0, 2.0, "RED", true); // Upcast
System.out.println(shape2);
System.out.println(shape2.getArea());
System.out.println(shape2.getPerimeter());
System.out.println(shape2.getColor());
System.out.println("\n");

Rectangle rectangle1 = (Rectangle)shape2; // downcast
System.out.println(rectangle1);
System.out.println(rectangle1.getArea());
System.out.println(rectangle1.getColor());
System.out.println(rectangle1.getLength());
System.out.println("\n");

Shape shape3 = new Square(6.6); // Upcast
System.out.println(shape3);
System.out.println(shape3.getArea());
System.out.println(shape3.getColor());
System.out.println("\n");

Rectangle rectangle2 = (Rectangle)shape3; //downcast
System.out.println(rectangle2);
System.out.println(rectangle2.getArea());
System.out.println(rectangle2.getColor());
System.out.println(rectangle2.getLength());
System.out.println("\n");

Square square1 = (Square)rectangle2; //downcast rectangle2 ke square
System.out.println(square1);
System.out.println(square1.getArea());
System.out.println(square1.getColor());
System.out.println(square1.getSide());
System.out.println(square1.getLength());

}
}