> For the complete documentation index, see [llms.txt](https://educacion.gitbook.io/programacion/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://educacion.gitbook.io/programacion/exercicios-java/ud4-solucions/caracteristicas-da-poo.md).

# Características da POO

```java
package Figuras;

public class Figura {

    private double ancho;
    private double alto;

    public Figura() {
    }

    public double getAncho() {
        return ancho;
    }

    public void setAncho(double ancho) {
        this.ancho = ancho;
    }

    public double getAlto() {
        return alto;
    }

    public void setAlto(double alto) {
        this.alto = alto;
    }

    public void mostrarDimensiones() {
        System.out.println("Ancho: " + ancho + " | Alto: " + alto);
    }
}

```

```java
package Figuras;

public class Triangulo extends Figura {

    private String estilo;

    public Triangulo() {
    }

    public String getEstilo() {
        return estilo;
    }

    public void setEstilo(String estilo) {
        this.estilo = estilo;
    }

    public double calcularArea() {
        return (ancho * alto) / 2;
    }
}

```

```java
package Figuras;

public class Cuadrilatero extends Figura {

    private String tipo;

    public Cuadrilatero() {
    }

    public String getTipo() {
        return tipo;
    }

    public void setTipo(String tipo) {
        this.tipo = tipo;
    }

    public double calcularArea() {
        return ancho * alto;
    }
}

```

```java
package Figuras;

public class TrianguloColor extends Triangulo {

    private String color;

    public TrianguloColor() {
    }

    public String getColor() {
        return color;
    }

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

    public String areaYColor() {
        return "Área: " + calcularArea() + " | Color: " + color;
    }
}

```

```java
package Figuras;

public class App {

    public static void main(String[] args) {

        // Figura
        Figura figura = new Figura();
        figura.setAncho(10);
        figura.setAlto(5);
        figura.mostrarDimensiones();

        System.out.println("-------------------------");

        // Triangulo
        Triangulo triangulo = new Triangulo();
        triangulo.setAncho(6);
        triangulo.setAlto(4);
        triangulo.setEstilo("Isósceles");
        triangulo.mostrarDimensiones();
        System.out.println("Área do triángulo: " + triangulo.calcularArea());

        System.out.println("-------------------------");

        // Cuadrilatero
        Cuadrilatero cuad = new Cuadrilatero();
        cuad.setAncho(8);
        cuad.setAlto(5);
        cuad.setTipo("Rectángulo");
        cuad.mostrarDimensiones();
        System.out.println("Área do cuadrilátero: " + cuad.calcularArea());

        System.out.println("-------------------------");

        // TrianguloColor
        TrianguloColor triColor = new TrianguloColor();
        triColor.setAncho(7);
        triColor.setAlto(3);
        triColor.setEstilo("Equilátero");
        triColor.setColor("Vermello");
        triColor.mostrarDimensiones();
        System.out.println("Área do triángulo: " + triColor.calcularArea());
        System.out.println(triColor.areaYColor());
    }
}

```


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