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);
im considered quite the "javanoob" as my account name states..The assignment is to basically take a number that is entered by a user, and based off what they type in, display a corresponding grade letter. For example, if they enter a number between 90-100, they should receive a response that they received an "A". Now, this is fairly simple using an if/else statement, but my professor wanted us to implement this, using a switch case to teach us the difference.
import java.util.*; public class SwitchTest { public static void main(String[] args) { Scanner scan = new Scanner(System.in);
System.out.println("Please enter a number to find out what letter grade you have recieved");
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 :
Write a java program that calculate the grade point of three subjects and their credit hours through if the grade points and the credit hours are
Subject---grade---gradepoint-----credit hours Maths------A--------4.0---------3 English composition-----B-------3.0-----2 French-----B+ ---- 3.3----------3
Now,if the grade point is equal to 4 ,print out First class If the grade point is equal or greater than 3.0 but less than 4,print out Second class upper If the grade point is equal or greater than 2.0 but less than 3,print out second class lower Use the if-else-if statement
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 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.
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 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 have a similar problem but what i need to do is to detect an exused absent of which in my notepad is represented by 00 and 0 being an unexcused absent, anyway if a student has an excused absent example a quiz for that day will be deducted from the total quizzes example if i was the teacher and had 2 quizzes of 10 items each and she was absent in one of the quizes instead of let say her score was 9 on the first quiz it should go 9/10 and if it was an unexcused absent 9+0/20 anyway this is my java code and notepad example
import java.io.*; import java.util.*; import java.lang.*; public class GradingSystem { public static void main (String[] args) throws FileNotFoundException
I am making a programme for a calculator to - Divide, multiply, add and subtract. I have the code written but when I am running it and trying to add it was for some subtracting ....
import javax.swing.JOptionPane; public class calculator3 { public static void main(String[] args){ String number1,number2,operatorstring; double result=0,a,b;
How do I get the code to use decimals? Also whenever you input 1, 2 or 3 as one of the operators, it always does that operator as well as the 4th operator at the end. So it always does subtraction. However when you use 4 as the only operator it works perfect.
import java.util.Scanner; public class Program05 { public static void main(String[] args) { Scanner stdIn = new Scanner(System.in); double left; double right;
My assignment is to essentially update a calculator program that uses strings, and methods, to include arrays. How to create and call an array that the user defines the size of and then inputs the numbers to fill the array. Here's the example my prof gave us of what the output should look like:
Menu 1. Add 2. Subtract 3. Multiply 4. Divide 5. Dot product 6. Generate random array 7. Quit
What would you like to do? 1
How many values are in the arrays? 3
Enter the values in the first array, separated by spaces: 2 4 6
Enter the values in the second array, separated by spaces: 1 3 5
The result is [3.0, 7.0, 11.0]
How to create an array that would allow the user to define the size of the array and then inputs the values for the array? I'm completely lost. I never should have taken java as an online class.
I'm writing a command line application of a calculator in Java. I need to be able to (as per program requirements) split the array of strings (6+3) into an array of strings? How would that be done? I know you can use the split method, but I am not really sure how that wold work to perform math with them?
On a side note: for this application, how could you make the program accept a variety of different lengths of strings to perform math with them?
I am attempting to make a heart rate calculator program. Here is a little overview of what I am trying to do. It must use a constructor and get and set methods. It must print heart rate ranges and the user's information(age).
// Use scanner to get inputs import java.util.Scanner;
// Declare class public class HeartRates { private int Age; private int DayOfBirth; private int MonthOfBirth; private int YearOfBirth; private double MaxHeartRate; private double MinTargetHeartRate;
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);
I have an assignment which i tried to solve myself but there's one part that says "This information should then be displayed with the lowest grade first" which i dont know how to do
Write a Java program that calculates and displays your grade point average (GPA) for the term. Your program should prompt the user to enter the grade and credit hours for each course. This information should then be displayed with the lowest grade first, and the GPA for the term should be calculated and displayed. A warning message should be printed if the GPA is less 2.0 and a congratulatory message if the GPA is 3.5 or above.)
here's my answer:
import java.util.*; public class Gpa {static Scanner stdIn= new Scanner(System.in); public static void main (String[]args) { char grade=' '; int gradevalue=0; double gpa;
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;
The purpose of this project is to determine the letter grade of students. The program needs to accept two command line arguments:
The first being the name of a disk file that contains the names of students, and their test scores, separated by commas followed by one or more spaces. Each line in the file will contain scores for one student.
The second argument is the name of an output disk file. The program is supposed to create a new output disk file using that name.
The number of students in the input file is unknown during compile time. The name of input and output files could be anything and only known during run time. Additionally, the average scores, along with the minimum and maximum scores for each test are to be displayed in the console.
Calculation: Final Score = quiz1 * .10 + quiz2 * .10 + quiz3 * .10 + quiz4 * .10 + midi * .20 + midii * .15 + final * .25 Final Score >= 90% then letter grade is A, 80%-89% B, 70%-79% C, 60-69% D, <= 59% F
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 am trying to create a program that allows me to enter 5 students numeric grade (0-100) to a letter grade (A, B, C, D, F) and I CANNOT use an array. When I try to run my program it says main class not found, and when I change the it from a string to a void in the main method it does not work.
Java Code:
import java.util.Scanner; public class Week3ControlStatements2 { public static String main(String[] args){ int numberGrade = 0; int quotient = numberGrade / 10; int remainder = numberGrade % 10;
I need creating a code that will create random addition or subtraction from 0-500 depending on their grade level. I know how to create a random for the math and subtraction. I just dont know how to get it to change depending on their grade level. Example I need it to ask their name, grade level, addition or subtraction then five addition or subtraction questions depending on what they chose.
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();
