TestScores Class Write a class named TestScores . The class constructor should a
ID: 3542645 • Letter: T
Question
TestScores Class
Write a class named TestScores . The class constructor should accept an array of test scores as its argument. The class should have a method that returns the average of the test scores. If any test score in the array is negative or greater than 100, the class should throw an IllegalArgumentException .
Demonstrate the class in a program.
TestScores Class Custom Exception
Write an exception class named InvalidTestScore . Modify the TestScores class you wrote in Programming Challenge 1 so that it throws an InvalidTestScore exception.
Explanation / Answer
package testscores;
import java.util.ArrayList;
import java.util.List;
public class TestScores {
public List<Integer> scorearray=new ArrayList<>();
public TestScores(List<Integer> scores){
this.scorearray=scores;
for(int i=0;i<scorearray.size();i++){
if(scorearray.get(i)>100 || scorearray.get(i)<0){
throw new IllegalArgumentException("Score is not valid!");
}
}
}
public double average(){
int tot=0;
for(int i=0;i<this.scorearray.size();i++){
tot=tot+this.scorearray.get(i);
}
return tot*(1.0)/(this.scorearray.size());
}
}
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