PLZ HELP ASAP
package lesson8;

public abstract class Shape {
protected int height;
protected int width;

public Shape(int height, int width) {
this. height = height;
this. width = width;
}

public final void printArea() {
System. out. println("This " + getName() + " has a height of " +
height + ", a width of " + width + ", and an area of " +
getArea() + ".");
}

public final void printPerimeter() {
System. out. println("This " + getName() + " has a height of " +
height + ", a width of " + width + ", and a perimeter of " +
getPerimeter() + ".");
}

protected abstract String getName();
protected abstract double getArea();
protected abstract double getPerimeter();
}
Rectangle Class
package lesson8;

public class Rectangle extends Shape {
public Rectangle(int height, int width) {
super(height, width);
}

protected String getName() {
return "rectangle";
}

protected double getArea() {
return height * width;
}

protected double getPerimeter() {
return height * 2 + width * 2;
}
}
RightTriangle Class
package lesson8;

public class RightTriangle extends Shape {
public RightTriangle(int height, int width) {
super(height, width);
}

protected String getName() {
return "right triangle";
}

protected double getArea() {
return height * width / 2;
}

protected double getPerimeter() {
return height + width + Math. sqrt(height * height + width * width);
}
}
Square Class
package lesson8;

public class Square extends Rectangle {
public Square(int height) {
super(height, height);
}

protected String getName() {
return "square";
}
}