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Thread: User-Defined Methods

  1. #1
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    Default User-Defined Methods

    I am writing a program for my Java class that takes the length of two sides of a right triangle, and calculates the hypotenuse, as well as the sine, cosine, and tangent of each non-right angle of the right triangle. The calculations for the hypotenuse, sine, cosine, and tangent should be placed in separate methods.
    I keep getting two errors when I try to declare my methods, 'class' expected and ')' expected. I cannot figure out what I am doing wrong, any help would be appreciated.


    import java.util.*;
    import static java.lang.Math.*;
     
    public class RightTriangle
    {
     
         public static void main(String[] args)
        {
     
         double a, b, c;
     
         System.out.println("Please enter first length"
         + " of side of the triangle", a);
         a = console.nextDouble();
         System.out.println("The opposite side of the"
         + "triangle is ", a);
     
        System.out.println("Please enter second length"
         + " of side of the triangle", b);
         b = console.nextDouble();
         System.out.println("The adjacent side of the"
         + "trianlge is ", b);
     
         c =((a*a) + (b*b));
         hypotenuse = c*c;
         System.out.println("The hypotenuse of the triangle"
         + "is ", hypotenuse);
     
         sine(double a, double c);
     
         cosine(double b, double c);
     
         tangent(double b, double c);
     
        }
     
        public static double getSine(double a, double c)
        {
         double opp;
         double hyp;
     
         opp = a.getNum();
         hyp = c.getNum();
     
         sine = opp/hyp;
         System.out.println("The sine of the triangle"
         + "is ", sine);
         }
     
         public static double getCosine(double b, double c)
         {
         double adj;
         double hyp;
     
         adj = b.getNum();
     
         hyp = c.getNum();
     
         cosine = adj/hyp;
         System.out.println("The cosine of the triangle"
         + "is ", cosine);
         }
     
         public static double getTangent(double a, double b)
         {
         double opp;
         double adj;
     
         opp = a.getNum();
         adj = b.getNum();
     
         tangent = a/b;
         System.out.println("The tangent of the triangle"
         + "is ", tangent);
         }
     
    }


  2. #2
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    Default Re: User-Defined Methods

    String s = "hello world";
    System.out.println(String s);
    What is wrong with the above code?
    Improving the world one idiot at a time!

  3. #3
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    Default Re: User-Defined Methods

    Once you solve that riddle you have numerous other problems with your code.
    Improving the world one idiot at a time!

  4. #4
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    Default Re: User-Defined Methods

    Quote Originally Posted by Junky View Post
    String s = "hello world";
    System.out.println(String s);
    What is wrong with the above code?
    System.out.println(s);

  5. #5
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    Default Re: User-Defined Methods

    Congratulations but the question was aimed at ZippyShannon so they can work out for themselves what is wrong with their code.
    Improving the world one idiot at a time!

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