Correct the Errors in the Java program Name: project */ import java.io.*; public
ID: 3691212 • Letter: C
Question
Correct the Errors in the Java program
Name: project
*/
import java.io.*;
public class testproject3
{
public static void main(String args[]) throws IOException
{
Hw9 app;
app = new Hw9();
app.appMain();
} // end main()
}
class Hw9
{
/* Instance Data Declarations, so declare the variables HERE */
BufferedReader stdin; // define stdin
int stuID, hours, totStus, totStuHours, hiGpaStuID;
float avgStuHours, gpa, hiGpa;
String term, inString;
/* appMain module calls for initialization, processing, output */
public void appMain() throws IOException
{
initializeReport();
displayHeader();
getTerm() ;
while (stuID != -1)
{
procStudent();
}
calcAvg();
displaySummary();
} // end of appMain
void initializeReport()
{
/* Initialize variables here */
stdin = new BufferedReader(new InputStreamReader(System.in));
// create standard input object
totStus = 0;
totStuHours = 0;
hiGpa = 0;
stuID = 0; // Any non-flag value
}
void displayHeadere()
{
System.out.println(" *********************");
System.out.println("Solution for HW #9");
System.out.println("by User ");
System.out.println("********************* ");
}
void getTerm() throws IOException
{
System.out.print("Please enter the semester term: ");
term = stdin.readLine();
}
void procStudent() throws IOException
{
getStuId();
if (stuID != -1)
{
getStuDetails();
calcTotals();
updateHigh();
displayDetails();
}
}
void getStuId() throws IOException
{
System.out.print("Enter the student ID code: ");
inString = stdin.readLine();
stulD= Integer.parselnt(inString);
}
void getStuDetails() throws IOException
{
System.out.print("Enter the student's GPA: ");
inString = stdin.readLine();
gpa = Float.parseFloat(inString);
System.out.print("Enter the number of hours completed by the student: ");
inString = stdin.readLine();
hours = Integer.parselnt(inString);
}
void calcTotals()
{
totStus = totStus + 1;
totStuHours = totStuHours + hours;
}
void updateHigh()
{
if (hiGpa < gpa)
{
hiGpa = gpa;
hiGpaStulD = stuID;
}
}
void displayDetails()
{
System.out.println(" ******* Student Details *******") ;
System.out.println("Student ");
System.out.println("Code GPA Hours");
System.out.println(stulD + " " + gpa + " " + hours);
System.out.println("******************************** ");
}
void ealcAvg()
{
avgStuHours = (float)totStuHours / totStus;
}
void displaySummary()
{
System.out.print(" ************ Semester Summary ******");
System.out.println(" SEMESTER: " + term);
System.out.println("Total number of students: " + totStus);
System.out.println("Total number of student hours: " + totStuHours);
System.out.println("Average number of student hours: " + avgStuHours);
System.out.println(" Highest GPA: " + hiGpa);
System.out.println("ID of student with high GPA: " + hippaStuID);
System.out.println("************** ");
}
}
Explanation / Answer
import java.io.*;
public class HelloWorld
{
public static void main(String args[]) throws IOException
{
Hw9 app;
app = new Hw9();
app.appMain();
} // end main()
}
class Hw9
{
/* Instance Data Declarations, so declare the variables HERE */
BufferedReader stdin; // define stdin
int stuID, hours, totStus, totStuHours, hiGpaStuID;
float avgStuHours, gpa, hiGpa;
String term, inString;
/* appMain module calls for initialization, processing, output */
public void appMain() throws IOException
{
initializeReport();
displayHeader();
getTerm() ;
while (stuID != -1)
{
procStudent();
}
calcAvg();
displaySummary();
} // end of appMain
void initializeReport()
{
/* Initialize variables here */
stdin = new BufferedReader(new InputStreamReader(System.in));
// create standard input object
totStus = 0;
totStuHours = 0;
hiGpa = 0;
stuID = 0; // Any non-flag value
}
void displayHeader()
{
System.out.println(" *********************");
System.out.println("Solution for HW #9");
System.out.println("by User ");
System.out.println("********************* ");
}
void getTerm() throws IOException
{
System.out.print("Please enter the semester term: ");
term = stdin.readLine();
}
void procStudent() throws IOException
{
getStuId();
if (stuID != -1)
{
getStuDetails();
calcTotals();
updateHigh();
displayDetails();
}
}
void getStuId() throws IOException
{
System.out.print("Enter the student ID code: ");
inString = stdin.readLine();
stuID= Integer.parseInt(inString);
}
void getStuDetails() throws IOException
{
System.out.print("Enter the student's GPA: ");
inString = stdin.readLine();
gpa = Float.parseFloat(inString);
System.out.print("Enter the number of hours completed by the student: ");
inString = stdin.readLine();
hours = Integer.parseInt(inString);
}
void calcTotals()
{
totStus = totStus + 1;
totStuHours = totStuHours + hours;
}
void updateHigh()
{
if (hiGpa < gpa)
{
hiGpa = gpa;
hiGpaStuID = stuID;
}
}
void displayDetails()
{
System.out.println(" ******* Student Details *******") ;
System.out.println("Student ");
System.out.println("Code GPA Hours");
System.out.println(stuID + " " + gpa + " " + hours);
System.out.println("******************************** ");
}
void calcAvg()
{
avgStuHours = (float)totStuHours / totStus;
}
void displaySummary()
{
System.out.print(" ************ Semester Summary ******");
System.out.println(" SEMESTER: " + term);
System.out.println("Total number of students: " + totStus);
System.out.println("Total number of student hours: " + totStuHours);
System.out.println("Average number of student hours: " + avgStuHours);
System.out.println(" Highest GPA: " + hiGpa);
System.out.println("ID of student with high GPA: " + hiGpaStuID);
System.out.println("************** ");
}
}