code is complete! but whats wrong here??

[alaina peeler]

i have an abstract class of Shapes and 3 child classes ....Shapes constructor is Shape(double mycircumference, double myarea)....in my child class im using super(my_side*4,my_side*my_side) but its saying cannot find constructor shapes(double,double)??

[Ernest Friedman-Hill]

Well, you'd have to show us the code, eh?

[alaina peeler]

public abstract class Shapes
{
protected double area, circumference;

public void Shape(double myCircumference, double myArea)
{
this.circumference=myCircumference;
this.area=myArea;
}

public String toString()
{
String result="Circumference: " + circumference + "/n" + "Area: " + area;
return result;

}
public abstract double Compute_area();

public abstract double Compute_circumference();

}
public class Square extends Shapes
{
private double side;

public Square(double my_side)
{
super(my_side * 4, my_side*my_side);//error here...cannot find symbol..constructor Shapes(double,double)
side=my_side;

}
public double Compute_circumference()
{
return circumference;
}
public double Compute_area()
{
return area;
}
public class Rectangle extends Shapes
{
private double width,height;

public Rectangle(double my_width,double my_height)//error here..cannot find symbol..constructor Shapes(double,double)

{
super(my_width*my_height, 2*my_width+my_height);
width=my_width;
height=my_height;
}
public double Compute_circumference()
{
return circumference;
}
public double Compute_area()
{
return area;
}

}
public class Circle extends Shapes
{
private double radius;

public Circle(double my_radius)
{
super(2*Math.PI*my_radius, my_radius*my_radius*Math.PI);//error here...cannot find symbol..constructor Shapes(double,double)

radius=my_radius;
}
public double Compute_circumference()
{
return circumference;
}
public double Compute_area()
{
return area;
}

}

[Jeremy Tartaglia]

i have an abstract class of Shapes and 3 child classes ....Shapes constructor is Shape(double mycircumference, double myarea)....in my child class im using super(my_side*4,my_side*my_side) but its saying cannot find constructor shapes(double,double)??

Code wasn't necessary. Listen to what you're saying:

i have an abstract class of Shapes...Shapes constructor is Shape(double mycircumference, double myarea)...

Rule: The constructor name must be the same as the class name. The constructor is what gets called when you make a new object.

EDIT: Upon looking at the code, I noticed something else. Constructor methods do not return void. They don't return anything. Just:

public Shapes(double blah,double blah2)
{
}

[ February 14, 2006: Message edited by: Jeremy Tartaglia ]

[memati bas]

Hi,
You should check your each constructor again. I think that the errors are derived from the constructor that you specify.
You should also specify the super method parameters in the constructor 's parameters.

Best wishes.

[Ankur Sharma]

I have found that your abstract class name is Shapes and you have defined the constructer name is Shape which is different so thats why the error is coming I have corrected the code try this one. it's perfectly correct.

abstract class Shapes {
protected double area, circumference;
 
public Shapes(double myCircumference, double myArea) {
this.circumference = myCircumference;
this.area = myArea;
}
 
public String toString() {
String result =
"Circumference: " + circumference + "/n" + "Area: " + area;
return result;
 
}
public abstract double Compute_area();
 
public abstract double Compute_circumference();
 
}
public class Test extends Shapes {
private double side;
 
public Test(double my_side) {
super(my_side * 4, my_side * my_side);
//error here...cannot find symbol..constructor Shapes(double,double)
side = my_side;
 
}
public double Compute_circumference() {
return circumference;
}
public double Compute_area() {
return area;
}
public class Rectangle extends Shapes {
private double width, height;
 
public Rectangle(
double my_width,
double my_height) //error here..cannot find symbol..constructor Shapes(double,double)
 
{
super(my_width * my_height, 2 * my_width + my_height);
width = my_width;
height = my_height;
}
public double Compute_circumference() {
return circumference;
}
public double Compute_area() {
return area;
}
 
}
public class Circle extends Shapes {
private double radius;
 
public Circle(double my_radius) {
super(2 * Math.PI * my_radius, my_radius * my_radius * Math.PI);
//error here...cannot find symbol..constructor Shapes(double,double)
 
radius = my_radius;
}
public double Compute_circumference() {
return circumference;
}
public double Compute_area() {
return area;
}
 
}
}