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Thread: Please help me with this Java programming

  1. #1
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    Post Please help me with this Java programming

    Hello everyone I am a BSC Mathematics student and very beginner in Java Programming and as part of my Mathematics degree I am also learning Algorithm with Java programming. I am in very early stages of Java so I could be making very silly mistake but believe it or not but I am stuck with this error for last 2 days but still cannot figure out where is the problem. Anyone please help me I will really appreciate that.

    Following is the programme code I am using:
    class diy70
    	{
    		public static void main(String[] args)
    		{
    			int degree;
    			degree = 0;
     
    			double px, x;
    			/* px is the variable used to store the result of the polynomial at x.
    			*/
    		    Calculate Taylor_Polynomials tp=newCalculate_Taylor_Polynomials();
    			// Evaluate the polynomial at x = 0.2.
    			x = 0.2;
    			switch (degree) {
    				case 0: px = tp.p0(x); tp.printpx(0.8, x, px); break;
    				case 1: px = tp.p1(x); tp.printpx(0.8, x, px); break;
    				case 2: px = tp.p2(x); tp.printpx(0.8, x, px); break;
    				default: System.out.println("nothing is done.");
    				}
    	}
    	static class Calculate_Taylor_Polynomials
    	{
    		/* Return the result of the polynomial in P.3 Lecture 2 */
    		double p0(double x)
    		{
    			double pofx =1.0;
    			return pofx;
    		}
    		Double p1 (double x)
    		{
    			double pofx = 1.0 + x;
    			return pofx;
    		}
    		double p2(double x)
    		{
    			double px = 1.0 + x + Math.pow(x,2);
    			return px;
    		}
    		void printpx(int degree, double x, double px)
    	   {
    			System.out.println("Degree " + degree + "polynomial");
    			System.out.println ("P( = " + x + ")=" + px);
    			}
    	 }
    }
    But when I run the above programme I am getting error on line 11 saying something like this:

    ';' expected and also there is ^ this sign between Polynomials and tp


    Will wait for reply and may God bless you for this.
    Last edited by helloworld922; January 13th, 2010 at 06:43 PM. Reason: Please use [code] tags!


  2. #2
    Super Moderator helloworld922's Avatar
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    Default Re: Please help me with this Java programming

    Calculate Taylor_Polynomials tp=newCalculate_Taylor_Polynomials();
    It looks like you're missing a space between "new" and "Calculate_Taylor_Polynomials();"
    Calculate Taylor_Polynomials tp=new Calculate_Taylor_Polynomials(); // fixed

  3. #3
    Senile Half-Wit Freaky Chris's Avatar
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    Default Re: Please help me with this Java programming

    Also an underscore

    Calculate Taylor_Polynomials tp=newCalculate_Taylor_Polynomials();
    Calculate_Taylor_Polynomials tp=new Calculate_Taylor_Polynomials();
    chris[at]javaprogrammingforums[dot]com

    Prifysgol Bangor University, North Wales

  4. #4
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    Default Re: Please help me with this Java programming

    Thanks , I tried this but the problems is still there . Giving me the same error

  5. #5
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    Default Re: Please help me with this Java programming

    Thanks Chris u were right i forgot to put underscore.

  6. #6
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    Default Re: Please help me with this Java programming

    Also Thanks for your help HelloWorld 922 . I have some more problems so i will put on this tread.

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