Write an exception class named InvalidTestScore. Modify the TestScores class you wrote in Programming Challenge $1$ so that it throws an InvalidTestScore exception if any of the test scores in the array are invalid.

Please write the code as simple as possible with non$-$advanced techniques. Please leave detailed comments for everything. Thank you!!

Here is my code for Program Challenge $1-$

public class TestScores

$\{$

$//$Create score array

private double score$[]$;

$//$Constructor to initialize values

public TestScores$($double scores$[])$

$\{$

this.score$=$scores;

$\}$

$//$Method to calculate average

public double avg$()$

$\{$

double sum $=0$;

for$($int x$=0$; x$=0$ && score$[$x$]<=100)$

$\{$

sum$+=$score$[$x$]$;

$\}$

else

$\{$

$//$throw IllegalArgumentExeption

throw new IllegalArgumentException$()$;

$\}$

$\}$

$//$Get average from sum and return avg

double avg $=$ sum$/$score$.$length;

return avg;

$\}$

$\}$

public class TestScores$\_$DEMO

$\{$

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

$\{$

$//$Array a initialized with test scores

double a$[]=\{10,89,75,60\}$;

$//$Object $1$ created and array a is passed

TestScores obj$1=$ new TestScores$($a$)$;

$//$Average method called for obj$1$

System.out.println$("$average score for obj$1$:$"+$obj$1.$avg$())$;

$//$Array b initialized with bad values

double b$[]=\{65,10,101,-10\}$;

$//$Object$2$ created and array b is passed

TestScores obj$2=$ new TestScores$($b$)$;

$//$Average method called for obj$2$

System.out.println$("$average score for obj$2$:$"+$obj$2.$avg$())$;

$\}$

$\}$