New to object-oriented

[fluteattack]

In class, we're moving from procedural programming to object-oriented. Here's the assignment I'm working on. I won't be surprised if all of this is wrong (I don't have a great handle on it yet), but I keep getting the same two errors: ".class expected" and "; expected".

// -----------------------------------------------------------------
// This program prompts the user to enter a circle's radius, and 
// calculates and displays the circle's area, diameter and circumfrence. 
// -----------------------------------------------------------------

public class Circle
{	
	private double radius;			//radius
	private final double PI = 3.14159;	//Pi	
				
	//****************************************************
	//Accepts the radius of the circle as an argument
	
	public Circle(double newRadius)
	{
		setRadius(double newRadius);
		
	}//end Constructor
	
		
	//****************************************************
	//A mutator method for the radius field
	
	public void setRadius(double newRadius)
	{
		this.radius = radius;
		
	}//end setRadius
	
	//****************************************************
	//An accessor method for the radius field
	
	public double getRadius()
	{
		return this.radius;
	}//end getRadius
	
	//****************************************************
	//Returns the area of the circle, calculated as pi*R^2, R is the radius
	
	public double getArea()
	{
		return PI*radius*radius;
	}//end getArea
	
	//****************************************************
	//Returns the diameter of the circle, calculated as 2R, R is the radius
	
	public double getDiameter()
	{
		return 2*radius;
	}//end getDiameter
	
	//****************************************************
	//Returns the diameter of the circle, calculated as 2piR, R is the radius
	
	public double getCircumfrence()
	{
		return 2*PI*radius;
	}//end getCircumfrence
			
} // end class Circle

public class CircleRun
{
	public static void main(String args[])
	{
		System.out.println("Please enter the radius of a circle: ");
		radius = in.nextDouble();
		
		Circle cir = new Circle();
		
		System.out.println("Area is: " + cir.getArea);
		System.out.println("Diameter is: " + cir.getDiameter);
		System.out.println("Circumfrence is: " + cir.getCircumfrence);
	}
}

[SHE]

public Circle(double newRadius) --
Circle cir = new Circle(); --> why you do not insert the parameter !

		System.out.println("Please enter the radius of a circle: ");
		double [B][COLOR="YellowGreen"]radius [/COLOR][/B]= in.nextDouble();
		
		Circle cir = new Circle([B][COLOR="YellowGreen"]radius [/COLOR][/B]);

[fluteattack]

Thanks.. the errors are on line 22 though

[Fubarable]

Thanks.. the errors are on line 22 though

You might want to tell us which line is 22.

[fluteattack]

22: setRadius(double newRadius);

In the first method

[Fubarable]

22: setRadius(double newRadius);

In the first method

You're confusing calling a method with defining a method. When you create a method, you need to declare the variable types of the parameters, but when you call the same method, you don't declare the variable types, but rather you simply pass in the correct type of variable.

For example, you would define the method foo like so:

// here we have to declare the parameter as int type
public void foo(int value) {
   System.out.println("value is: " + value);
}

But when you call foo, you don't declare the parameter type:

int i = 10;

// foo(int i);  // incorrect

foo(i);  //correct

Make sense?

[SHE]

public class Circle

    {
    private double redius ;
    public final double PI = 3.14159;

    public Circle(double redius) {
        this.redius = redius;
    }

    public double getRedius() {
        return redius;
    }

    public void setRedius(double redius) {
        this.redius = redius;
    }
   public double getArea()
    {
        System.out.println("your Area is "+PI*redius*redius);
        return PI*redius*redius;
    }

      public double getDimeter()
    {
        System.out.println("your Dimeter is "+2*redius);
        return 2*redius;
    }

    public double getCircumfrence()
    {
        System.out.println("your Circumfrence is "+2*PI*redius);
        return 2*PI*redius;
    }

    }

    public static void main(String[] args) 
    {
        Scanner input = new Scanner(System.in);
        System.out.println("Please Enter the redius to count the area");
        double redius = input.nextDouble();
        System.out.println("your redius is"+"["+redius+"]");
        Circle crc1 = new Circle(redius);
        crc1.getArea();
        crc1.getDimeter();
        crc1.getCircumfrence();
        
    }

try this one it work 100 %
I was wonder why you put PI as private ?