RightTriangle Class

Write a RightTriangle class that has the following private fields:

legA: a double

legB: a double

The class should have the following public methods:

No$-$argument constructor: Sets fields to $1$

Constructor: Accepts legs of the right triangle as arguments. Constructor throws IllegalArgumentException when one or both legs are set to $0$ or negative number$($s$)$

setLegA$(),$ setLegB$()-$ mutator methods. Both methods throw Illegal Argument Exception when leg is set to $0$ or negative number.

getLegA$(),$getLegB$()-$ accessor methods.

getHypotenuse$()$ calculates and returns hypotenuse of the triangle.

getArea$()$ calculates and returns area of the right triangle

getPerimeter$()-$ calculates and returns perimeter of the triangle

toString$()$ method that represents object as a string in the following format: "legA $=3\mathrm{.}0,$ legB $=4\mathrm{.}0"$

Test cases:

import java.io$.$PrintWriter;

public class TestRightTriangle $\{$

public static boolean tests$($PrintWriter outputStream$)$

$\{$

outputStream.println$("\backslash$r

$----$RightTriangle Class TESTS $-------------------------------------------------------\backslash$r

$")$;

boolean t$1=$ test$01$TriangleClass$($outputStream$)$;

boolean t$2=$ test$02$TriangleClass$($outputStream$)$;

boolean t$3=$ test$03$TriangleClass$($outputStream$)$;

return t$1$&&t$2$&&t$3$;

$\}$

$//$ set, get, throwing exceptions

public static boolean test$01$TriangleClass$($PrintWriter outputStream$)$

$\{$

int count $=0$;

int expectedCount $=3$;

double a$1=10\mathrm{.}1,$ b$1=15\mathrm{.}1$; $//$ legs for the set method tests

double aa$1=10\mathrm{.}1,$ bb$1=15\mathrm{.}1$; $//$ expected values for set method tests

double a$2=-5,$ b$2=-5$; $//$ values for testting exceptions

$//$Test #$1$

RightTriangle tri$1=$ new RightTriangle$()$;

tri$1.$setLegA$($a$1)$;

tri$1.$setLegB$($b$1)$;

if$($tri$1.$getLegA$()==$aa$1$ && tri$1.$getLegB$()==$ bb$1)$

$\{$

outputStream.printf$("\%-80$s$\%-10$s

$",$ "RightTriangle TEST SET $01$: setetters and getters", "PASSED"$)$;

count$++$;

$\}$

else outputStream.printf$("\%-80$s$\%-10$s

$",$ "RightTriangle TEST SET $01$: setetters and getters", "FAILED"$)$;

$//$Test #$2$

try

$\{$

tri$1.$setLegA$($a$2)$;

outputStream.printf$("\%-80$s$\%-10$s

$",$ "RightTriangle TEST SET $01$: setLegA and exception it must throw", "FAILED"$)$;

$\}$

catch $($IllegalArgumentException e$)$

$\{$

outputStream.printf$("\%-80$s$\%-10$s

$",$ "RightTriangle TEST SET $01$: setLegA and exception it must throw", "PASSED"$)$;

count$++$;

$\}$

$//$Test #$3$

try

$\{$

tri$1.$setLegB$($b$2)$;

outputStream.printf$("\%-80$s$\%-10$s

$",$ "RightTriangle TEST SET $01$: setLegB and exception it must throw", "FAILED"$)$;

$\}$

catch $($IllegalArgumentException e$)$

$\{$

outputStream.printf$("\%-80$s$\%-10$s

$",$ "RightTriangle TEST SET $01$: setLegB and exception it must throw", "PASSED"$)$;

count$++$;

$\}$

if $($count$==$expectedCount$)$ return true;

else return false;

$\}$

$//$ constructors and exceptions

public static boolean test$02$TriangleClass$($PrintWriter outputStream$)$

$\{$

int count $=0$;

int expectedCount $=2$;

double a$1=10\mathrm{.}5,$ b$1=15\mathrm{.}3$; $//$ legs for constructor with parameters

double aa$1=10\mathrm{.}5,$ bb$1=15\mathrm{.}3$; $//$ expected values to be set by constructor

double aa$2=1,$ bb$2=1$; $//$ values for testing default constructor

double a$3=-51,$ b$3=-8$; $//$ values for testing exceptions

$//$Test #$1$

RightTriangle tri$1=$ new RightTriangle$($a$1,$ b$1)$;

if$($tri$1.$getLegA$()==$aa$1$ && tri$1.$getLegB$()==$ bb$1)$

$\{$

outputStream.printf$("\%-80$s$\%-10$s

$",$ "RightTriangle TEST SET $02$: constructor with parameters", "PASSED"$)$;

count$++$;

$\}$

else outputStream.printf$("\%-80$s$\%-10$s

$",$ "RightTriangle TEST SET $02$: constructor with parameters", "FAILED"$)$;

$//$Test #$2$

RightTriangle tri$2=$ new RightTriangle$()$;

if$($tri$2.$getLegA$()==$aa$2$ && tri$2.$getLegB$()==$ bb$2)$

$\{$

outputStream.printf$("\%-80$s$\%-10$s

$",$ "RightTriangle TEST SET $02$: no$-$argument constructor", "PASSED"$)$;

count$++$;

$\}$

else outputStream.printf$("\%-80$s$\%-10$s

$",$ "RightTriangle TEST SET $02$: no$-$argument constructor", "FAILED"$)$;

$//$Test #$3$

try

$\{$

tri$1=$ new RightTriangle$(-1,1)$;

tri$1=$ new RightTriangle$(0,1)$;

outputStream.printf$("\%-80$s$\%-10$s

$",$ "RightTriangle TEST SET $02$: constructor exception non$-$positive first param", "FAILED"$)$;

$\}$

catch $($IllegalArgumentException e$)$

$\{$

outputStream.printf$("\%-80$s$\%-10$s

$",$ "RightTriangle TEST SET $02$: constructor exception non$-$positive first pa