Concept explainers
Explanation of Solution
Program:
File name: “TestGrade.java”
//Import necessary header files
import java.util.*;
//Define a class named TestGrade
public class TestGrade
{
//Define a main method
public static void main(String args[]) throws Exception
{
//Create an object for Scanner class
Scanner input = new Scanner(System.in);
//Declare an array to store eight student ID numbers
int[] ids = {1234, 1245, 1267, 1278, 2345,
1256, 3456, 3478, 4567, 5678
};
//Declare test letter grades
char[] grades = new char[10];
String gradeString = new String();
//Declare the variables and initialize the values
final int HIGHLIMIT = 100;
String inString, outString = "";
int flag = 0;
//For loop to be executed until x exceeds 8
for (int x = 0; x < ids.length; ++x)
{
//Prompt the user to enter a letter grade for the //student
System.out.println("Enter letter grade for student id number: " + ids[x]);
inString = input.next();
grades[x] = inString.charAt(0);
//Try
try
{
TestGrade.isValidGrade(grades[x]);
}
//Catch the GradeException
catch(GradeException e)
{
//Print an appropriate message
System.out.println(e);
//Store I for student for whom
//an exception is caught
grades[x] = 'I';
}
}
//For loop to be executed until x exceeds 8
for (int x = 0; x < ids...
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