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Merge branch 'master' of gitea.it:gicorada/java-scuola

This commit is contained in:
Giacomo R. 2023-05-11 14:42:25 +02:00
parent f7f5965619 26ec9ddbad
commit 7d0cbb0d02
10 changed files with 203 additions and 51 deletions
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17
NetBeans Projects/shape/src/shape/Circle.java
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@ -8,13 +8,10 @@ import java.awt.geom.Ellipse2D;
* @author radaelli11353
*/
public class Circle extends Shape {
private double xc;
private double yc;
private double r;
public Circle(double xc, double yc, double r) {
this.xc = xc;
this.yc = yc;
super(xc-r, yc-r);
this.r = r;
}
@ -32,16 +29,6 @@ public class Circle extends Shape {
return r*2;
}
@Override
public double posX() {
return xc - r;
}
@Override
public double posY() {
return yc - r;
}
@Override
public int hashCode() {
int hash = 5;
@ -61,7 +48,7 @@ public class Circle extends Shape {
@Override
public void draw(Graphics2D g2) {
Ellipse2D.Double e = new Ellipse2D.Double(xc-r, yc-r, r*2, r*2);
Ellipse2D.Double e = new Ellipse2D.Double(posX(), posY(), width(), height());
g2.draw(e);
}

47
NetBeans Projects/shape/src/shape/Geometria.java Normal file
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@ -0,0 +1,47 @@
package shape;
import java.util.ArrayList;
import java.util.Random;
import java.awt.Graphics2D;
public class Geometria {
private ArrayList<Shape> elementi;
public Geometria() {
elementi = new ArrayList<>();
}
public void riempiACaso(int size) {
Random r = new Random();
for(int i = 0; i < size; i++) {
int s = r.nextInt(3);
double x = r.nextDouble()*300;
double y = r.nextDouble()*300;
switch(s) {
case 0:
//circle
double raggio = r.nextDouble()*30;
elementi.add(new Circle(x, y, raggio));
break;
case 1:
//square
double lato = r.nextDouble()*40;
elementi.add(new Square(lato, x, y));
break;
case 2:
//triangolo
double base = r.nextDouble()*30;
double altezza = r.nextDouble()*30;
elementi.add(new TriangoloRettangolo(base, altezza, x, y));
break;
}
}
}
public void draw(Graphics2D g2) {
for(Shape s : elementi) s.draw(g2);
}
}

29
NetBeans Projects/shape/src/shape/Shape.java
View File

@ -7,15 +7,26 @@ import java.awt.Graphics2D;
* @author radaelli11353
*/
public abstract class Shape implements Comparable<Shape> {
public abstract double width();
public abstract double height();
public abstract double posX();
public abstract double posY();
private double x, y;
public Shape(double x, double y) {
this.x = x;
this.y = y;
}
public abstract double width();
public abstract double height();
public double posX() {
return x;
}
public double posY() {
return y;
}
public abstract void draw(Graphics2D g2);
public abstract void draw(Graphics2D g2);
@Override
public int compareTo(Shape o) {
return Double.compare(width() * height(), o.width() * o.height());
}
@Override
public int compareTo(Shape o) {
return Double.compare(width() * height(), o.width() * o.height());
}
}

2
NetBeans Projects/shape/src/shape/Square.java
View File

@ -57,7 +57,7 @@ public class Square extends Shape {
@Override
public void draw(Graphics2D g2) {
Rectangle r = new Rectangle((int)x, (int)y, (int)l, (int)l);
Rectangle r = new Rectangle((int)posX(), (int)posY(), (int)width(), (int)height());
g2.draw(r);
}

14
NetBeans Projects/shape/src/shape/Tester.java
View File

@ -9,7 +9,7 @@ import javax.swing.JComponent;
* @author radaelli11353
*/
public class Tester extends JComponent{
public static void main(String[] args) {
/*public static void main(String[] args) {
Shape c1 = new Circle(2, 3, 1);
Shape c2 = new Circle(2, 3, 1);
@ -19,17 +19,15 @@ public class Tester extends JComponent{
((Circle) c2).setRadius(2);
System.out.println(c2.posX() + ", " + c2.posY());
}
}*/
public void paintComponent(Graphics g) {
Graphics2D g2 = (Graphics2D) g;
Shape s1 = new Circle(88, 200, 50);
Shape s2 = new Square(200, 100, 100);
Shape s3 = new TriangoloRettangolo(200, 100, 100, 100);
Geometria geom = new Geometria();
s1.draw(g2);
s2.draw(g2);
s3.draw(g2);
geom.riempiACaso(10);
geom.draw(g2);
}
}

23
NetBeans Projects/shape/src/shape/TriangoloRettangolo.java
View File

@ -10,14 +10,11 @@ import java.awt.geom.Line2D;
public class TriangoloRettangolo extends Shape {
private double b;
private double h;
private double x;
private double y;
public TriangoloRettangolo(double b, double h, double x, double y) {
this.b = b;
super(x, y);
this.b = b;
this.h = h;
this.x = x;
this.y = y;
}
@Override
@ -30,16 +27,6 @@ public class TriangoloRettangolo extends Shape {
return h;
}
@Override
public double posX() {
return x;
}
@Override
public double posY() {
return y;
}
@Override
public int hashCode() {
int hash = 3;
@ -76,9 +63,9 @@ public class TriangoloRettangolo extends Shape {
@Override
public void draw(Graphics2D g2) {
Line2D.Double altezza = new Line2D.Double(x, y, x, y+h);
Line2D.Double base = new Line2D.Double(x, y+h, x+b, y+h);
Line2D.Double ipotenusa = new Line2D.Double(x, y, x+b, y+h);
Line2D.Double altezza = new Line2D.Double(posX(), posY(), posX(), posY()+height());
Line2D.Double base = new Line2D.Double(posX(), posY()+height(), posX()+width(), posY()+height());
Line2D.Double ipotenusa = new Line2D.Double(posX(), posY(), posX()+width(), posY()+height());
g2.draw(altezza);
g2.draw(base);

20
corr-verifica-2maggio/Collezione.java Normal file
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@ -0,0 +1,20 @@
import java.util.ArrayList;
public class Collezione {
private String nome;
private ArrayList<OperaDArte> opere;
public Collezione(String nome) {
this.nome = nome;
opere = new ArrayList<>();
}
public void addOpera(OperaDArte o) {
opere.add(o);
}
@Override
public String toString() {
return nome + "{" + opere.toString() + "}";
}
}

35
corr-verifica-2maggio/OperaDArte.java Normal file
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@ -0,0 +1,35 @@
public abstract class OperaDArte implements Comparable<OperaDArte> {
private String titolo;
private String autore;
public OperaDArte(String titolo, String autore) {
this.titolo = titolo;
this.autore = autore;
}
public abstract double ingombro();
@Override
public boolean equals(Object o) {
if(o==null || o.getClass() != getClass()) return false;
OperaDArte op = (OperaDArte) o;
return titolo.equals(op.titolo) && autore.equals(op.autore);
}
@Override
public int hashCode() {
return titolo.hashCode() + autore.hashCode();
}
@Override
public int compareTo(OperaDArte o) {
return Double.compare(ingombro(), o.ingombro());
}
@Override
public String toString() {
return titolo + " di " + autore;
}
}

32
corr-verifica-2maggio/Quadro.java Normal file
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@ -0,0 +1,32 @@
public class Quadro extends OperaDArte {
private double larghezza;
private double altezza;
public Quadro(String titolo, String autore, double larghezza, double altezza) {
super(titolo, autore);
this.larghezza = larghezza;
this.altezza = altezza;
}
@Override
public double ingombro() {
return larghezza * altezza;
}
@Override
public String toString() {
return super.toString() + larghezza + "x" + altezza + "(l*h)";
}
@Override
public boolean equals(Object o) {
if(!super.equals(o)) return false;
Quadro q = (Quadro) o;
return larghezza == q.larghezza && altezza == q.altezza;
}
@Override
public int hashCode() {
return super.hashCode() + (int)larghezza + (int)altezza;
}
}

35
corr-verifica-2maggio/Scultura.java Normal file
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@ -0,0 +1,35 @@
public class Scultura extends OperaDArte {
private double larghezza;
private double altezza;
private double profondita;
public Scultura(String titolo, String autore, double larghezza, double altezza, double profondita) {
super(titolo, autore);
this.larghezza = larghezza;
this.altezza = altezza;
this.profondita = profondita;
}
@Override
public double ingombro() {
return larghezza * altezza * profondita;
}
@Override
public String toString() {
return super.toString() + larghezza + "x" + altezza + "x" + profondita + "(l*h*p)";
}
@Override
public boolean equals(Object o) {
if(!super.equals(o)) return false;
Scultura s = (Scultura) o;
return larghezza == s.larghezza && altezza == s.altezza && profondita == s.profondita;
}
@Override
public int hashCode() {
return super.hashCode() + (int)larghezza + (int)altezza + (int)profondita;
}
}