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# Thread: User-Defined Methods

1. ## 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. ## Re: User-Defined Methods

```String s = "hello world";
System.out.println(String s);```
What is wrong with the above code?

3. ## Re: User-Defined Methods

Once you solve that riddle you have numerous other problems with your code.

4. ## Re: User-Defined Methods

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

5. ## 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.