Minor Homework help....just want to clean up some things
Everything works fine, I just have two questions:
1. Is there a simple way to center headings and subheadings when writing to a text file?
2. How can I restart the for loop after coming out of the default break of my switch block?
None of these are required for my assignment, I just want to try to do these for my own learning.
The code is as follows:
import java.text.*;//imports java text class
import java.io.*;//imports java io class
publicclass Lab10Rough
{
publicstaticvoid main(String[] args)throws Exception
{
String stuName;
String stuNum;
String courseNamSec;
String numCoursesString;
String gpaOutput;
String letterGradeString;
float gradePoints;
char letterGrade;
double numCourses;
double gpa;
double count;
double sumGradePoints = 0.00;
FileWriter fw =new FileWriter("Lab10.txt");
BufferedWriter bw =new BufferedWriter(fw);
PrintWriter pw =new PrintWriter(bw);
DecimalFormat num =new DecimalFormat("###.00");
InputStreamReader isr =new InputStreamReader(System.in);
BufferedReader br =new BufferedReader(isr);
System.out.print("Enter the number of courses taken: ");
numCoursesString = br.readLine();
numCourses = Double.parseDouble(numCoursesString);
System.out.print("Enter your name: ");
stuName = br.readLine();
System.out.print("Enter your student number: ");
stuNum = br.readLine();
pw.println("Bucks County Community College Grade Report For");
pw.println(stuName);
pw.println(stuNum);
pw.println("Course" +"\t" +"\tGrade" +"\t" +"\tGradepoints");
for(count = 0; count < numCourses; count++)
{
System.out.print("What is your course name and section? (ex. CISC115.59): ");
courseNamSec = br.readLine();
System.out.print("What is your letter grade for the course? (no + or -): ");
letterGradeString = br.readLine();
letterGrade = letterGradeString.charAt(0);
switch(letterGrade)
{
case'A':
case'a':
letterGrade ='A';
gradePoints = 4.00f;
break;
case'B':
case'b':
letterGrade ='B';
gradePoints = 3.00f;
break;
case'C':
case'c':
letterGrade ='C';
gradePoints = 2.00f;
break;
case'D':
case'd':
letterGrade ='D';
gradePoints = 1.00f;
break;
case'F':
case'f':
letterGrade ='F';
gradePoints = 0.00f;
break;
default:
gradePoints = 0.00f;
System.out.println("Invalid letter entry");
break;
}
pw.println(courseNamSec +"\t" +"\t" + letterGrade +"\t" +"\t" + gradePoints);
sumGradePoints += gradePoints;
}
gpa = sumGradePoints / numCourses;
gpaOutput = num.format(gpa);
pw.println("GPA: " + gpaOutput);
pw.close();
}
}
Thanks much!
