Can anyone help me write comments for this code. Fill this code with alot of use

Question

Can anyone help me write comments for this code. Fill this code with alot of useful comments. I will give you a thumbs up.

I need to write comments describing the functions for these two java files

TestScores.java

public class TestScores
{
private double scores[] = new double[5];
public TestScores (double test[])throws InvalidTestScores
{
for(int i=0;i<5;i++)
{
if(test[i]<0||test[i]>100)
{
throw new InvalidTestScores (test[i]);
}
else
{
scores[i]=test[i];
}
System.out.println("Average is:"+getAverage());
}
}

public double getAverage()
{
double sum=0;
double avg;
for(int i=0;i<5;i++)
{
sum+=scores[i];
}
avg=sum/5;
return avg;
}
}

InvalidTestScores.java

public class InvalidTestScores extends Exception
{
public InvalidTestScores(double n)
{
super ("Error:Number cannot be "
+ "less than 0 and greater than 100 i.e "+n);
}
  
}

Explanation / Answer

public class TestScores
{
private double scores[] = new double[5];//Declaring of scores array of double type
public TestScores (double test[])throws InvalidTestScores
{
for(int i=0;i<5;i++)
{
if(test[i]<0||test[i]>100)//checking the each value in array value based on index
{
throw new InvalidTestScores (test[i]);//If value is less than zero (or) greather than 100 throw the exception
}
else
{
scores[i]=test[i];// Inserting (or) pushing value from test array to scores array
}
System.out.println("Average is:"+getAverage());//Calculated average will print here
}
}
public double getAverage()
{
double sum=0;//Declaring double type varible as sum
double avg; //Declaring avg of type double
for(int i=0;i<5;i++)
{
sum+=scores[i];//adding each score array value to sum , here sum+ is short circuit operator it is alterative to sum=sum +value
}
avg=sum/5;//dividing value in sum by 5
return avg;//Returning value of avg from the function
}
}
InvalidTestScores.java
public class InvalidTestScores extends Exception // This class handles the exception caused in "TestScores.java"
{
public InvalidTestScores(double n)//If invalid value is existed that value passed into InvalidTestScores(double)
{
super ("Error:Number cannot be "
+ "less than 0 and greater than 100 i.e "+n);//This return an error that value and its statement.
}
  
}

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