// Author:      Kenneth Chan
// email :      kjc@liverpool.ac.uk
// Date  :      October 2011
// Language:    JAVA
// Description: program that demonstrates a simple class of methods

class mymath
{
    /* Example of constant inside a class */
    public final int KEN = 53 ;
    
    /* Method to return the "sum" of two numbers */
    public double sum( double num1, double num2 )
    {
        return num1 + num2 ;
    }

    /* Method to return the "multiplication" of two numbers */
    public double multiplication( double num1, double num2 )
    {
        return num1 * num2 ;
    }

    /* Method to return the max of two integers */
    public int max( int num1, int num2)
    {
        System.out.println( "** inside max1(ints) **" ) ;
        if ( num1 > num2 ) return num1 ;
        else               return num2 ;
    }

    /* Method to return the min of two integers */
    public int min( int num1, int num2)
    {
        if ( num1 > num2 ) return num2 ;
        else               return num1 ;
    }

    /* Method to return the max of two doubles */
    public double max( double num1, double num2)
    {
        System.out.println( "** inside max2(floats) **" ) ;
        if ( num1 > num2 ) return num1 ;
        else               return num2 ;
    }

    /* Method to return the min of two doubles */
    public double min( double num1, double num2)
    {
        if ( num1 > num2 ) return num2 ;
        else               return num1 ;
    }

    /* Method to return the circumference of a circle */
    public double circumference( double radius )
    {
        return 2*Math.PI*radius ;
    }

    /* Method to return the area of a circle */
    public double area( double radius )
    {
        return Math.PI*radius*radius ;
    }
}