import java.util.$*$;

$/**$

$*$

$*$ @author Alexandra Vaschillo

$*/$

public class TwoMethodsA$03\{$

$/**$

$*$ Method finds and returns the largest digit in a given number

$*$ @param num the number to analyze

$*$ @return the largest digit

$*/$

public static int getLargestDigit$($int num$)$

$\{$

return $-1$;

$\}$

$/**$

$*$ Method calculates and returns the sum of fractions $1/2+2/3+...+$ a$/($a$+1)$

$*$ @param a the limit of the fraction pattern

$*$ @return the sum of fractions; returns $-1$ if the parameter value is less than $1$

$*/$

public static double fractionSum$($int n$)$

$\{$

return $-1$;

$\}$

$/**$

$*$ A set of tests for getLagrestDigit$()$ method.

$*/$

public static void testGetLargestDigit$()$

$\{$

$//***$ Test $1***//$

if$($getLargestDigit$(-5)==5$ && getLargestDigit$(0)==0$ && getLargestDigit$(9)==9)$ System.out.println$("$Test $1$ for getLargestDigit$()$ PASSED"$)$;

else System.out.println$("$Test $1$ for getLargestDigit$()$ Failed"$)$;

$//***$ Test $2***//$

if$($getLargestDigit$(5565)==6$ && getLargestDigit$(9881)==9$ && getLargestDigit$(12348)==8$ && getLargestDigit$(33)==3)$ System.out.println$("$Test $2$ for getLargestDigit$()$ PASSED"$)$;

else System.out.println$("$Test $2$ for getLargestDigit$()$ Failed"$)$;

$\}$

$/**$

$*$ A set of tests for testFractionSum$()$ method

$*/$

public static void testFractionSum$()$

$\{$

$//***$ Test $1***//$

if$($fractionSum$(-55)==-1$ && fractionSum$(0)==-1)$ System.out.println$("$Test $1$ for fractionSum$()$ PASSED"$)$;

else System.out.println$("$Test $1$ for fractionSum$()$ Failed"$)$;

$//***$ Test $2***//$

if$($fractionSum$(1)==0\mathrm{.}5)$ System.out.println$("$Test $2$ for fractionSum$()$ PASSED"$)$;

else System.out.println$("$Test $2$ for fractionSum$()$ Failed"$)$;

$//***$ Test $3***//$

if$($Math$.$round$($fractionSum$(5)*100\mathrm{.}0)/100\mathrm{.}0==3\mathrm{.}55)$ System.out.println$("$Test $3$ for fractionSum$()$ PASSED"$)$;

else System.out.println$("$Test $3$ for fractionSum$()$ Failed"$)$;

$//***$ Test $4***//$

if$($Math$.$round$($fractionSum$(250)*1000\mathrm{.}0)/1000\mathrm{.}0==244\mathrm{.}895)$ System.out.println$("$Test $4$ for fractionSum$()$ PASSED"$)$;

else System.out.println$("$Test $4$ for fractionSum$()$ Failed"$)$;

$//***$ Test $5***//$

if$($Math$.$round$($fractionSum$(251)*1000\mathrm{.}0)/1000\mathrm{.}0==245\mathrm{.}891)$ System.out.println$("$Test $5$ for fractionSum$()$ PASSED"$)$;

else System.out.println$("$Test $5$ for fractionSum$()$ Failed"$)$;

$\}$

$/**$

$*$ @param args the command line arguments

$*/$

public static void main$($String$[]$ args$)\{$

testGetLargestDigit$()$;

testFractionSum$()$;

$\}$

$\}$