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)
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.
Write a program that promts a professor to input grades for five different courses for 10 students. Prompt the professor to enter only A,B,C,D, or F for grades(A is the highest grade, F fail). use variables for student number(1 through 10) and grade numbers(1 through 5). create a menu for Search. if the user select search it will prompt a letter correspond to grade. display all student with selected grade. if the user just enter nothing, display all student with their grade sorted from highest to lowest.
I had to make a program that allowed the user to enter the number of students and the students names and grades and then print out the name with the grade in descending order. right now I only have it where it prints the names out in descending order. how do I get it the print out with the grade?
Here is my code
import java.util.*; public class Grades { public static void main(String[] args) { Scanner input = new Scanner(System.in); System.out.print("Enter the number of students: "); int numofstudents = input.nextInt();
For my lab this week I have to print out four arrays. The arrays have to be 5 units long. The first three arrays are the student's exam grades for exam 1, 2 & 3 and the fourth array should be the average for each student's three tests. The program should ask the user to input the grades in and then the program should compute the average. For example the program should print this if these are the exam grades the user imputs:
Exam 1 Exam 2 Exam 3 Average 65 79 80 74.66 79 82 59 73.33 99 100 98 99 and so on.......
I thought I wrote the program perfectly and when I compile it there are no errors but when I run it, it only lets me input the numbers for the first three students and then prints out something so strange.
here is my program:
public class Lab9{ public static void main(String[] args){ java.util.Scanner input = new java.util.Scanner(System.in); int i, sum; double avg; sum = 0; int A[ ] = new int [5]; int B[ ] = new int [5]; int C[ ] = new int [5]; double avg1[ ] = new double[5];
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);
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;
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 :
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);
A University offers a course that prepares students for the county licensing exam for real estate brokers. Last year, twenty students who completed this course took the exam. The university wants to know how well its students did an exam. You have been asked to write a program to summarize the results. You have been given a list of these 20 students. Next to each is written a1 if the student passed the exam or a2 if the student failed the exam.Your program should analyze the results as follows:
i.Input each test result (i.e., a1 or a2). Display the message Enter result on the screen each time the program requests another test result. ii.Count the number of test results of each type. iii.Display a summary of the test results, indicating the number of students who passed and the number who failed. iv.If more than 15 students passed the exam, output message, Bonus to the instructor
I want to write a java program which displays to get the GPA of a student as a keyboard input. Then display the class of the degree according to the following criteria using a switch-case statement (if-else statements cannot be used). If the user insert an invalid gpa you should display a message Invalid GPA.
gpa ≥ 3.50 First Class Hons 3.49 ≥ gpa ≥ 3.00 Upper Second Class Hons 2.99 ≥ gpa ≥ 2.50 Lower Second Class Hons 2.49 ≥ gpa ≥ 2.00 Pass 2.00 ≥ gpa Fail
Here is my code:
import java.io.*; public class q7 { public static void main(String[] args) { InputStreamReader ISR=new InputStreamReader(System.in); BufferedReader BR=new BufferedReader(ISR);
[code]...
.But when I use Command console to run this it says: 1111.jpg. I also wanna know is there another way to do this with switch- case statements.
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.
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);
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:
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;
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;
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.
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];
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'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)
For some reason, the averages aren't calculating correctly. I'm aware I need to convert to double if I'm dividing by an odd amount but that itself isn't the issue. It's just simple easy divisible numbers that are not being calculated correctly. For instance, (10 + 10 + 10 + 50) / 4 = should be 2 but I get 10.
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();
I'm trying to write a program that will output the total number of large,medium,and small pizza along with the average cost of an order. I'm stuck on this error , "Else without if" on line 48 else ...medium.
import java.util.Scanner; public class PizzaOrder { public static void main(String[] args) { Scanner input = new Scanner (System.in); double cost,total, average; String name,response,size,type; int count,l,m,s;
You are to write a parallel program that will receive a large array of unsorted integers containing digits from 0 to 99. The program will have to calculate the SUM and AVERAGE of ODD number digits between 25 and 75 (inclusive). The user may specify the size or the array and the total processor that the machine has. The size of the array must be divisible by number of processor. Based on the given size, the computer will generate random integer numbers automatically to populate the array.
The program should display the status of the calculation for each processor. The result should be displayed after all calculations are completed.Error messages should be displayed appropriately
a) Write a sequential (non-parallel) program that will accomplish above task. b) Write a concurrent (parallel) program that will produce the result of the above task.
I wasn't supposed to use the % in front of f.I have to make a program to calculate the average temperature and annual precipitation in Jacksonville. I get this error on line 49:
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 { public static void main(String[] args) { double[] temperaturesInJacksonville = {53.1, 55.8, 61.6, 66.6, 73.4, 79.1, 81.6, 80.8, 77.8, 69.4, 61.7, 55.0};
