Find Weighted Average Of Four Test Scores
Apr 17, 2015
Write a program in JAVA in response to the following prompt:
Design a GUI program to find the weighted average of four test scores. The four test scores and their respective weights are given in the following format:
testscore1 weight1
...
For example, the sample data is as follows:
75 0.20
95 0.35
85 0.15
65 0.30
The user is supposed to enter the data and press a Calculate button. The program must display the weighted average.
Here is what I have written:
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class weightedaverage2 extends JFrame {
private JLabel Score1L,Score2L,Score3L,Score4L;
[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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Sep 24, 2014
Using Bluejay. Need code that prompts user to enter 5 test scores and their names. Calculate the average and display.
First initial and last name , 5 test scores, and average
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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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Dec 8, 2014
Design and write a Java program that will generate a set of test scores between 0-100, inconclusive. The exact umber of scores is determined either randomly or by the user input. There should be a minimum of 5 test scores. The program calculates the average of all test score in this data set. Then it asks the user how many scores are to be dropped and drops that number of low scores. The average is recalculated.
Output of this program:
The original test scores printed in rows of 10 scores
The average before low scores are dropped
The number of low scores to be dropped
The list of low scores dropped
The new average
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Sep 5, 2014
Write a program that will read unspecified numbers of scores . The program will output the average of these scores and the scores that are below and above the average.
Example..
1
2
3
4
5
Average is 3
Below 1
2
Above
4
5
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Oct 14, 2014
I am working in the field of validating data. I need to validate names and test scores and i keeping getting errors in my code. I keep tracing back all the errors and now I am stuck at a logic error. It is giving me a the validate sentence over and over even when i type stuff in. I have searched up how to do the .equals to a string but it doesn't give me a accurate enough to my problem.
import java.util.Scanner;
public class P5A
{
public static void main (String args[]) {
System.out.println( "Always Show" );
Scanner reader = new Scanner(System.in);
[Code] .....
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Apr 22, 2015
Write a program that asks the user to enter five test scores. The program should display a letter grade for each score and the average test score. Write the following methods in the program:
calculateAverage This method should accept five test scores as arguments and return the average of the scores. determineGrade This method should accept a test score as an argument and return a letter grade for the score, based on the following grading scale
Score Letter Grade
90-100 A
80-89 B
70-79 C
60-69 D
Below 60 F
double test1,test2,test3,test4,test5;
double average;
char grade;
Scanner keyboard = new Scanner(System.in);
System.out.println("Enter the first score");
test1 = keyboard.nextDouble();
System.out.println("Enter the second score");
test2 = keyboard.nextDouble();
[code]....
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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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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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Aug 28, 2014
I am trying to figure out how to report the high and low scores with names from a file. The format is like:
6352 J@me$$
663843 BOBBBB1
etc...
This is my code so far.
import java.io.*;
import java.util.*;
public class Assignment1
{
public static void main(String[] args)throws IOException
[code]....
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Apr 2, 2015
Four experiments are performed, each consisting of six tests. The number of test results for each experiment is entered by the user. Write a Java program using a nested loop to compute and display the average of the test results for each experiment.
You can run the program by entering the following test results:
Experiment 1 results:23.231.516.927.525.428.6
Experiment 2 results:34.845.227.936.833.439.4
Experiment 3 results:19.416.810.220.818.913.4
Experiment 4 results:36.939.549.245.142.750.6
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Jul 26, 2014
import java.util.Scanner;
public class CountPosAndNegNumbers {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
[code]...
find the average of the integers that are input but can't manage to solve the problem.
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Feb 14, 2015
code a 10 * 10 matrix, with random numbers from 1 to 100,
i) Find the most repeated number.
ii) Use the Binary Sort, to sort the matrix in ascending order.
iii) Find the Column, with the highest average number.
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Apr 22, 2015
I am supposed to write a static method that simulates a flip of a weighted coin by returning either heads or tails each time it is called. The coin is twice as likely to turn up heads as tails. My idea was to of course use a random class
Random flip = new random
and somehow initialize it so 3 numbers are called and create if statements so that when 0 and 1 are called heads returns and when 3 is called tails is.How do I put all this together?
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Apr 26, 2014
how to get shortest path between two nodes in adjacency matrix using with undirected weighted graph using BFS algoritham java program??
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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 19, 2015
If this method returns the lowest score, how do I return the 2 lowest scores.
For example If I input 1, 2, 3, 4, 5 this code will return 1.
How do i return the two lowest scores, for example if I input 1, 2, 3, 4, 5, I want to return 1, 2
public double getLowestScore() {
smallest = testScores[0];
double sum = 0.0;
double total = 0.0;
double Average = 0.0;
[Code] ....
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Oct 25, 2014
So for this project I'm going to take in some quiz scores, then eventually get the total number, the range, the mean, and others... Here's the instructions for the two methods I need to create but am completely stuck on:
2. public boolean inputData(Scanner in)
2.1.takes in a Scanner object passed in from main()
2.2. asks the user for a number in the range of 0 through 100.
2.3.It must read a number into an integer variable unless a non-number value is entered, in which case the method will return false. You may use try/catch or an if statement for this.
2.4.If the datum/score seems acceptable, the addGrade method must be called.
2.5.If addGrade returns false, then inputData should throw an IllegalArgumentException or return false
Otherwise, inputData should return true. See section 11.4 for exceptions.
3. public boolean addGrade
3.1.takes in an integer grade. If grade is not in the range of 0 through 100 the method should return false.
Otherwise, it should appropriately change the values of numberOfQuizzes, highValue, lowValue,
3.2.totalQuizScore , sumOfSquares (used in variance calculation), and add one to the count of the proper variable for A's, B's, C's, D's or F's. The method should then call calculate and return true
Now I have done very little with booleans in class at all, so this is all very confusing for me. I've tried to do a lot of research on my own and so far I came up with the following for the two methods above:
public boolean inputData()
{
int score = 0;
System.out.println("Please enter values, Q to quit:");
Scanner in = new Scanner(System.in);
while (in.hasNextInt())
[Code] ....
Honestly I'm not really sure what I'm doing wrong at all, and I have done a lot of research but can't really find anything too similar to what the instructions want so I'm not sure what's right/wrong.
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Apr 27, 2014
I need to put my scores in ascending order how do i do that?
public static void main(String[] args) {
char[][] answers = {
{'A', 'B', 'A', 'C', 'C', 'D', 'E', 'E', 'A', 'D'},
{'D', 'B', 'A', 'B', 'C', 'A', 'E', 'E', 'A', 'D'},
{'E', 'D', 'D', 'A', 'C', 'B', 'E', 'E', 'A', 'D'},
{'C', 'B', 'A', 'E', 'D', 'C', 'E', 'E', 'A', 'D'},
[Code] ....
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Aug 21, 2014
I'm writing a program that is about rolling "dice" and getting the scores to add up to 100. There are two players in the game and each must take turns rolling dice choosing whether or not to keep rolling dice and accumulating more points during their turn while risking their points being lost by rolling a 1 or to add their turn points to their total points. The question I have is how would I exit the do while loop if the player chooses to add their turn score, thus adding their score and ending their turn?
Here is the coding so far.
Java Code:
import java.util.Scanner;
import java.util.Random;
public class Pig
{
public static void main(String[] args)
{
int die; int userTotalScore; int userTurnScore; int compTotalScore; int compTurnScore;
[Code] ....
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Nov 16, 2014
Alright, so, for my CS project, we're supposed to list diving scores. However, there are four sections (which I've made in the code) and each section has 9 scores. Of those nice scores, the highest and lowest must be eliminated and then the total needs to be figured out. We're supposed to be using arrays for this...
import java.util.Scanner;
import java.io.File;
import java.io.FileNotFoundException;
public class Diving {
public static final int MAX_DIVES = 51;
public static void main (String[] args) {
[Code] .....
The text file link is uploaded on this post.File is here:
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Apr 22, 2015
I have a project that is asking me to create a program that will handle a Golfer and his scores. The program will be comprised of three classes: a Golfer class that will manage all the golfer's scores, a Score class and a Tester class to drive the other classes. To accomplish this task the program will use a partially filled array to store the golfer's scores. I have the majority of the code written. It compiles fine, but when I compile and run it only gives the following output.
Tiger ID Number: 1001 Home Course: Pebble Beach
Score Date Course Course Rating Course Slope
[LScore;@15db9742
I am not sure what I am doing wrong. I have been over and over the code. It is also only printing one golfers information. I have tried creating a for loop for the for the toString in the Golfer class but I am getting the following error Golfer.java:117: error: missing return statement.
I am at a loss here is the code I have for the three sections.
public class Golfer
{
private String name;
private String homeCourse;
private int idNum;
private Score[] scores;
private static int nextIDNum = 1000;
[Code] ....
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Oct 10, 2014
Write a program that reads student scores, gets the best score and then assigns grades based on the following scheme:
Grade is A if score is >= best - 10;
Grade is B is score is >= best - 20;
Grades is C if score is >= best - 30;
Grade is D if score is >= best - 40;
Grde is F other wise;
The program prompts the user to enter the total number of studeents, then prompts the user to enter all of the scores, and concludes by displaying the grades.
import java.util.*;
public class AssigningGrades
{
public static void main(String [] args)
{
Scanner scan = new Scanner(System.in);
int studentNumber = 0;
int classScore = 0;
[Code] ....
So when I ran into problems when populating the array and I made changes. Then all of a sudden the program doesn't recognize classSize[i] at the System.out.print line.
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Dec 20, 2014
i am a french student in France and i am studying informatics . For validating my term at the beginning of January i have a projet in JAVA to do called YAHTZEE. It's a game which i have to code WITHOUT USING AN OBJECTS. I already started the coding, i did all the beginning stuff ( to call the number and the names of players, to roll the 5 dices, i made the code for all the scoring points too(rules) ) but i can't do the table score which updates the new scores after each turn ( 3 turns in total) .
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May 22, 2015
I am a beginning programmer and was learning how to make an XML. It was for a simple game and only needs to hold the highscores of three different levels. Here is what I coded:
try {
OutputStream fout= new FileOutputStream("highScores.xml");
OutputStream bout= new BufferedOutputStream(fout);
OutputStreamWriter out = new OutputStreamWriter(bout, "8859_1");
[code]....
My issue is that I run this code every time I create the program and the scores are reset to 0. How can I make a small change so that I only run this block of code and create the XML the first time the program is run?
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