Netbeans and Ctrl + z (end of file)

[Nick Petas]

How can I use Ctrl + z (end of file) inside netbeans?
I am reading a deitel's book about java.
Thank you.

[Nick Petas]

Here is the code : (I managed to run it properly in a console window but only after removing the package commands)

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

//package javaapplication54;

/**
 * GradeBook class uses switch statement to count letter grades
 */
import java.util.Scanner;

public class GradeBook {

    private String courseName;  //name of course this GradeBook represents
    //int instance variable are initialized to 0 by default
    private int total;  //sum of grades
    private int gradeCounter;   //number of grades entered
    private int aCount;     //count of A grades
    private int bCount;
    private int cCount;
    private int dCount;
    private int fCount;

    //constructor
    public GradeBook(String name)
    {
        courseName = name;
    }

    //get and set methods
    public void setCourseName(String name)
    {
        courseName = name;
    }

    public String getCourseName()
    {
        return courseName;
    }

    //--other methods
    //display welcome message
    public void displayMessage()
    {
        System.out.printf("Welcome to the grade book for\n%s!\n\n", getCourseName());
    }

    //input arbitrary number of grades from user
    public void inputGrades()
    {
        Scanner input = new Scanner(System.in);

        int grade;  //grade entered by the user

        System.out.printf("%s\n%s\n      %s\n    %s\n",
                "Enter the integer grades in the range 0-100.",
                "Type the end-of-file indicator to terminate input:",
                "On UNIX/Linux/Mac OS X type <Ctrl> d then press Enter",
                "On Windows type <Ctrl> z then press Enter");

        //loop until user enters the end-of-file indicator
        while (input.hasNext())
        {
            grade = input.nextInt();    //read grade
            total += grade; //add grade to total
            ++gradeCounter;     //increment number of grades

            //call method to increment appropriate counter
            incrementLetterGradeCounter(grade);
        }
    }//end methdo inputGrades


    //add 1 to appropriate counter for specified grade
    private void incrementLetterGradeCounter(int grade)
    {
        //determine which grade was entered
        switch (grade / 10)
        {
            case 9:
            case 10:
                ++aCount;
                break;

            case 8:
                ++bCount;
                break;

            case 7:
                ++cCount;
                break;

            case 6:
                ++dCount;
                break;

            default:    //grade was less than 60
                ++fCount;
                break;
        }//end switch
    }//end method incrementLetterGradeCounter


    //display a report based on the grades entered by user
    public void displayGradeReport()
    {
        System.out.println("\nGrade Report:");

        //if user entered at least one grade...
        if (gradeCounter != 0)
        {
            //calculate average of all grades entered
            double average = (double)total / gradeCounter;

            //output summary of results
            System.out.printf("Total of the %d grades entered is %d\n", gradeCounter, total);
            System.out.printf("Class average is %.2f\n", average);
            System.out.printf("%s\n%s%d\n%s%d\n%s%d\n%s%d\n%s%d\n",
                    "Number of students who received each grade:",
                    "A: ", aCount,
                    "B: ", bCount,
                    "C: ", cCount,
                    "D: ", dCount,
                    "F: ", fCount);
        }
    }
}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

//package javaapplication54;

/**
 * Create GradeBook object, input grades and display grade report
 */

public class GradeBookTest {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        GradeBook myGradeBook = new GradeBook("CS101 Introduction to Java Programming");

        myGradeBook.displayMessage();
        myGradeBook.inputGrades();
        myGradeBook.displayGradeReport();
    }

}

[David Newton]

Run it from the command line--I don't know if you can enter in all the control characters inside the NetBeans wrapper around the console. If you can't, stick to the command line--you learn more that way anyway.