Grade Average Program - Hit Button Reseved For Calculations

Nov 23, 2014

I have written a simple grade average program. This is my code:

package programs;
 import java.util.Scanner;
 public class GradeAverage {
 public static void main(String[] args) {
 Scanner input = new Scanner(System.in);
int number;
int counter = 0;
int grade;
 
[Code] ....

Now the program is working just fine but what I don't like about it is the fact that you have to enter the number of grades before entering the grades. What I would prefer is to write your grades, hit some button that is reserved for calculating the average and then get the output.

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Student Grade Average Program?

Mar 27, 2015

I just have not got the chance to spend much time on it lately I know a bit but I'm not an expert or even intermediate with Java so I'm trying to make a program where the teacher enters the grade of each student and its stored in a variable the only problem is if I use a for loop the variable in which the result will be stired will be overwrite by the last repetition of the loop,I think the idea would be a nested loop but how I would go about using it in this situation,

here is my java code.

import java.util.Scanner;
class maths{
public static void main(String[] args)

[Code].....

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Grade Average Project

Dec 7, 2014

I have make a simple grade average project and can't figure out how to ask the user if they want to enter more grades to average and run the app again.Here's what I have so far.

import java.util.Scanner;
public class Average {
private static Scanner kb;
public static void main(String[] args) {
kb = new Scanner(System.in);
 
[code]...

How many grades do you wish to average?

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Sep 15, 2014

For this assignment you will be writing a grade book program. The program will work for one student. It will need to take as input the students name. The user will then be asked to input grades into three categories in this order:

1) homework;
2) quizzes;
3) tests.

The grades in a given category will be averaged to one number that is the average of all grades in that category. The final average will be the weighted average of each category, where homework is worth 25% quizzes are worth 25%, and test are worth 50%. Like this:

Homework Grades: 65, 70, 75, 80, 80 Homework Average: 74
Quiz Grades: 75, 80, 85, 80. Quiz Average: 80
Test Grades: 75, 80, 85, 75 Test Average: 78.75
Final Average = 0.25*HomeworkAvg + 0.25*QuizAvg + 0.50*TestAvg = 77.87

But i only have the average and i dont know how to move past that..

Heres my average code :

import java.util.Scanner;
public class Homework3 {
public static void main(String[] args) {
Scanner myScanner = new Scanner(System.in);
int gradeCount = 0;
int grades = 0;
int holder = 0;

[Code] .....

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Jul 15, 2014

I've been learning about Swing and I'm working on a Grade Average Calculator, but the problem is after the user types in the the grades, the average is supposed to appear, but for some reason in my code, nothing appears, I can only type in the grades. Here's my code so far :

package gradecalculator;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.text.JTextComponent;
import java.awt.*;
public class Gradecalculator extends JFrame implements FocusListener {
JTextField grade1, grade2, grade3, grade4, grade5, grade6, grade7, grade8;

[Code] .....

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May 28, 2014

this program works but returns zero for all the calculations. I checked everything there is no error but I dont know why is returning 0.

package mshproject3;
import java.util.StringTokenizer;
import javax.swing.JOptionPane;
public class HayloFactoryController {
public static void main(String[] args) {
String firstName = "";
String lastName = "";
String phoneNumber = "";
int aNbrOfVehicles = 0;
int aNbrOfFuelTanks = 0;
HayloFactory factory;

[code]....

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Grade Calculator Program

Nov 12, 2014

how to I modify my program so that it asks the user how many studens are in the class then according to the value the user inputs that is how many times the program will ask the user for a grade. Once the graded are entered it will then output the class average, minimum, and maximum. I believe that you'd use a for loop yet I am troubled.

import java.util.Scanner;
public class GetLetterGrade{
public static void main(String [] args){
Scanner reader = new Scanner(System.in);

[code]...

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Oct 13, 2014

/**
* In this program, use for and while loops with calculations to get the lottery odds.
*/
import java.util.Scanner;
import java.util.Random;
public class Lottery
{
public static void main (String []args)

[Code] .....

I need getting my numbers matching. When, I run the program each time no matter what number it keeps saying sorry no matches. However, I do need the program to have matches.

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Simple Program Giving Negative Result For Amount Of Calculations Done

Mar 5, 2014

Why this extremely simple program seems to be giving me a negative value for amount of calculations done within one minute ( Just using it as a bit of fun to see how different computers in the office perform).

Java Code:

class Benchmark {
public static void main(String[] args) {
long endTime = System.currentTimeMillis() + 60000;
int count = 0;
for (int i = 0; System.currentTimeMillis() < endTime; i++) {
double x = Math.sqrt(System.currentTimeMillis());
count = i;
}
System.out.print(count + " calculations per minute");
}
} mh_sh_highlight_all('java');

I am getting results between -2.1billion and -3.4billion which to me would make sense since they are not the best computers in the world but I would be expecting a positive value?

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Program That Will Accept Values And Transform Scores To Grade

Aug 26, 2014

I was trying to write a program that will accept values and transform the scores to grade. Like 70 and above will be given A from 60 to 69 is B, from 50 to 59 is C, from 40 to 49 is D and below 40 is F. I have defined the variables, for the textfield, am confused on how make this hapen on just a click of the comand botton.

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Write A Program That Translates A Number Between 0 And 4 Into Closest Letter Grade

Oct 8, 2014

Write a program that translates a number between 0 and 4 into the closest letter grade. For example, the number 2.8 (which might have been the average of several grades) would be converted to B. Break ties in favor of the better grade; for example 2.85 should be a B. Use a class Grade with a method getNumericGrade. why when I type .3 it tells me "Exception in thread "main" java.util.InputMismatchException" Or if there is an easier way to do this.

import java.util.Scanner;
public class Grades {
public static void main(String [] args) {
System.out.println("Enter a number between 0 and 4");
Scanner input = new Scanner(System.in);

[code]....

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Grading Program - Calculate Final Grade By Using Weighted Scoring System

Nov 29, 2014

Many classes calculate a final grade by using a weighted scoring system. For example, "Assignments" might be worth (weighted at) 40% of your final grade. To calculate the portion of the final grade contributed by the Assignments category, the teacher takes the average of all assignments in the category and multiplies it by the weight (40%). So if a student averaged 90% on all assignments, the teacher would take 40% of 90%, or 36 as the weighted average score for the assignment portion of the the final score. The teacher then calculates the weighted average score for each of the other categories (Quizzes, Midterm Exam, Final Exam, etc.), adds them all together to come up with the final score, and assigns a letter grade based on that score.

Write a Java program that allows the teacher to calculate the grade for a student.

Specification :

Prompt the user to enter the Student ID number, first name, last name, and the average score for each of the following categories:

Assignments (worth 50%)
Quizzes (worth 20%)
Midterm Exam (worth 10%)
Final Exam (worth 20%)

Calculate the weighted average score for each category and the total score for the student. Next assign a letter grade as follows:

90 - 100 = A
80 - 89 = B
70 - 79 = C
60 - 69 = D
59 and below = E

Print the results in the following format:

Name: [Last Name], [First Name]
Student ID: [Student ID]
Assignments: [weighted average]
Quizzes: [weighted average]
Midterm Exam: [weighted average]
Final Exam: [weighted average]
Total: [total score]
Final Grade: [letter grade]

Prompt the user to either enter another student or to quit. Continue the process until the user chooses to quit.

I almost done everything but I cant calculate a total score for the student or Assign a letter grade based on the score!!!!
 
package teacher_grade;
import java.util.Scanner;
public class teachergradeing {
public static void main (String[] args) {
//Scanner objective

[Code] ....

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Mar 25, 2014

I am new on this and I will be working in a gpa and average program. This is my code so far: Every time that I try to add the gpa part it gives me errors or just duplicates whatever I've in average and displays it in gpa

/**
* This program shows a database of students in a school.
* It gathers information as name, classes, grades, and calculates average and gpa average.
*
*/
import javax.swing.JOptionPane;
 
[code]....

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Sep 28, 2014

I am doing a program that has a weighted average calculation and everything compiles and runs. It is just that my weighted average seems to be calculating incorrectly.This is the type of output I should see:

Homework:
Number of assignments? 3
Assignment 1 score and max? 14 15
Assignment 2 score and max? 16 20
Assignment 3 score and max? 19 25
Sections attended? 4
Total points = 65 / 80
Weighted score = 40.63
Exam 1:
Score? 81
Curve? 0
Total points = 81 / 100
Weighted score = 16.2
Exam 2:
Score? 95
Curve? 10
Total points = 100 / 100
Weighted score = 30.0
Course grade = 86.83

Below is my code and I think even after getting up this morning and looking at it, I have an error in the calculations, but I can;t pinpoint it.This program is supposed to receive input from user, and calculated the grades of a student with a weighted average
 
import java.util.Scanner;
public class Grades{
private double weightExam;
private double score;
private double curveAmount;
private double scoreTotal;

[code]...

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Cannot Get Average Program To Calculate Properly

May 9, 2010

I am having a problem with my program. I can't get my program to calculate properly. Everything compiles and run but its just giving me a wrong answer. I am suposse to get 115.50 but instead I am getting .30...

order.java
public class Order
{
double salesTaxRate; //initializing a variable for the sales tax rate.
double subTotal; //initializing a varliable for the sub total.
double shippingCost; //initializing a variable for shipping cost.
double salesTax; //initializing a variable for sales tax.
double totalCost; // initializing a variable for totale cost.

[Code] ....

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May 5, 2015

I am writing a program using a given test drive... I am supposed to write two classes according to the test drive. The calculated correct answer should be 115.50 but i keep getting 115.52 instead and i just can't figure out what i'm doing wrong.

Here is the test drive code:

import java.text.NumberFormat;
public class FinalTester
{
public static void main(String[] args)
{
double avgPurchase;
Order[] lastYear = new Order[4];

[Code] ....

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How To Write A Program Which Compensate Average

Jan 12, 2015

I have a question. How to write a progamme which compensates an average if it is less than a 10/20. I use eclipse and database HSQLDB. I have a table with notes. After the compensates, I must change the note in my database.

I have three notes

12, 11, 5

The average is 12+11+5/3=9,33

I take the lowest note: 5

12+11+x/3 = 10

12+11+x/3 = 30/3

x=30-23

x=7

The new average is 12+11+7/3=10

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Jun 16, 2014

I'm working on a homework assignment and I keep getting a compiler message this is the message

GradesAverage.java:44: error: variable totalgrade might not have been initialized
System.out.println("Over all you have " + totalgrade);
^
1 error

The homework is this Write a program that has variables to hold three test scores. The program should ask the user to enter three test scores and then assign the values entered to the variables. The program should display the average of the test stores and the letter grade that is assigned for the test score average. Use the grading scheme in the following table:

Test Score Average Letter Grade
90-100 A
80-89 B
70-79 C
60-69 D
Below 60 F

This is my code

import javax.swing.JOptionPane; // Needed for JOptionPane class
import java.util.Scanner; // Needed for the scanner class
public class GradesAverage
{
public static void main (String[] args)

[code]....

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Apr 13, 2014

I keep getting an error that says variable can't be found, what am I missing?

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.text.DecimalFormat;
import java.util.Scanner;
public class testscores extends JFrame

[code]...

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Here is the code:

import java.util.Scanner;
public class Avg {
public static void main(String[] args){
Scanner inputGains = new Scanner(System.in);
int userInput = inputGains.nextInt();

[Code] ....

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Jan 28, 2015

package Program1;
import java.util.Scanner;
public class Source1 {

[Code].....

using netbeans to debug the program but i'm not sure what I did wrong as it doesnt go past test 1

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import java.util.Scanner;
public class PizzaOrder
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public static void main(String[] args)
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Scanner input = new Scanner (System.in);
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java.util.IllegalFormatPrecisionException;
null (in java.util.Formatter$FormatSpecifier)

I don't get any errors during compilation.Here is my code (I'm not using the system selection yet):

import java.util.Scanner;
public class AnnualClimate1
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public static void main(String[] args)
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When I run it, I don't get the correct average. I know that i'm supposed to enter 999 to exit the loop and to display the average, but 999 is being added with the loop. I'm not sure how to make it not do that.

//stephanie
import java.util.Scanner;
public class gradeAverage
{
public static void main(String[] args)

[code]....

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