Create A Program That Asks User For Array
Mar 3, 2014i need to create a program that asks the user for an array and then asks the user to fill in the slots of the array but i have to do it in a method
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Program That Asks To Create 2 Arrays
Oct 24, 2014I'm just learning about arrays. I have a small program to write that asks to create 2 arrays. One holding 5 names of flowers. One holding the prices of those 5 flowers. I ask the user what kind of flower they want and the quantity. I then need to create a loop that locates the flower name and uses that index to find the cost of the flower. I am struggling on how to write in code how to use one array index to find another. Example: Roses and $.50.
View Replies View RelatedWrite Java Program That Asks User For List Of Names?
May 21, 2015I am trying to write a java program that asks the user for a list of names (one per line) until the user enters a blank line. At that point the program should print out the list of names entered, where each name is listed only once (i.e., uniquely) no matter how many times the user entered the name in the program. I am supposed to use an ArrayList for this problem.
My idea for a solution is to create an ArrayList<String>, read each name, i.e., line, entered and then to see if that name is already in the ArrayList. I created a for loop to check each element in the ArrayList but when I try to assign an element to a string variable I get the error "Type mismatch: cannot convert from Object to String". Not sure why that is happening because the ArrayList is defined as a String list.
Here is the code so far.
/*
* File: UniqueNames.java
*/
import acm.program.*;
import java.util.*;
[Code].....
Program That Asks User For Integer And Prints Out All Its Factors In Increasing Order
Nov 18, 2014Write a program that asks the user for an integer andthen prints out all its factors in increasing order. Use a class FactorGenerator with a constructor FactorGenerator(int numberToFactor) and methods nextFactor and hasMoreFactors. Supply a class FactorTester whose main methods reads a user input, constructs a FactorGenerator object and prints the factors.
Here is what I have so far for my main class and tester class
public class FactorGenerator
{
int factor;
int number;
int x;
FactorGenerator(int numberToFactor)
{
number = numberToFactor;
}
[Code]....
Java Code That Asks User For Integer And Then Counts Down From That Number To 0
Oct 23, 2014Write a java code that asks the user for an Integer and then counts down from that number to 0. Printing each number. For example:
Enter an Integer: 5 (enter) <--- user hits the enter key
5
4
3
2
1
0
import java.util.Scanner;
public class Exam{
public static void main(String args[]){
Scanner in = new Scanner(System.in);
Write A Program That Asks Users To Input 5 Test Scores
Apr 22, 2015Write 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]....
Create A Program That Allows User To Enter A Day Using A Number
Oct 13, 2014so I had to create a program that allows the user to enter a day using a number and then enter a year and after they did that it would create an entire calendar for that year ..so I have that but the only issue is I can not get the numbers to line up neatly.how to do the entire thing in loops, I tried a couple in here..what this would look like as loops instead of switches and cases and if else
import java.util.Scanner;
public class Calendar {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
[code]....
Create A Program That Keeps Track Of Information Input By User
Sep 17, 2014I am new to Java an have to Create a program that keeps track of the following information input by the user: First Name, Last Name, Phone Number, and Age. Now - let's store this in a multidimensional array that will hold 10 of these contacts. So our multidimensional array will need to be 10 rows and 4 columns.You should be able to add and remove contacts in the array.
View Replies View RelatedAlgorithm That Asks User For Birth Date And Current Date
Sep 29, 2014write the algorithms of the following problems.
1. Write an algorithm that asks the user for your birth date and the current date and displays how many days has passed since then (remember that April, June, September and November has 30 days, February has 29 on leap years, and the rest 31)
2. Write an algorithm that asks the user a number (save it as N) and displays the N term of the Fibonnacci series (take it as 1, 1, 2, 3, 5 ...)
Write A Program To Create Integer Array Of Size 20
Aug 2, 2014Write a program to create an integer array of size 20. Then, the program should generate and insert random integers between 1 and 5, inclusive into the array. Next, the program should print the array as output.
A tremor is defined as a point of movement to and fro. To simulate it, the program will generate a random number between 0 and 19, which represents the location in the array (i.e. index number). Then, the 3 numbers to the left and right of this location should be reset to the value 0. If there isn't 3 numbers to the left and right you may assume a lesser number depending on the boundaries of the array.
Then, the final array should be printed as output. There is no user input for this program.Your program must include, at least, the following methods:
-insertNumbers, which will take as input one integer array and store the random numbers in it.
-createTremor, which will generate the random number as the location and return it.
A sample run of the program is shown below:
Sample output #1:
Array:1 2 2 3 1 5 4 2 3 4 4 2 1 1 3 2 1 4 3 2 1
Random position: 5
Final Array:1 2 0 0 0 5 0 0 0 4 4 2 1 1 3 2 1 4 3 2 1
Create Program That Draws Random Numbers And Stores Them In Array
Oct 1, 2014Is my code right for this pseudocode:
<Declaration of the array for storing random integers and other necessary variables and / or constants. >
private int numbers;
private int max;
private int[] integer;
private Random generator;
public integer ( int n, int m )
[code]....
I need to create a program that draws random numbers and stores them in an array. How many numbers to be drawn is dependent on the array length, which is a parameter in the class constructor. (The entire array to be filled!) The program shall, however, just save the figures are not drawn already. (Ie, the array must contain only one instance of each numeral.) All figures drawn should be in the range of 100 to 1000, both limits included. These limits are defined as named constants. When all the numbers are generated and stored in the array, the program should find the largest, smallest and average value of the numbers in the array. In addition, it should find the value closest gjennomnstittetsverdien.
Program That Allows User To Enter Up To 10 Integer Grades Into Array
Apr 30, 2015package question.pkg3;
import java.util.Scanner;
public class Question3 {
public static void main(String[] args) {
// TODO code application logic here
Scanner Luka=new Scanner(System.in);
double sum=0;double count=0;
int[] a=new int[10];
[code]....
I'm required to write a program that allows the user to enter up to 10 integer grades into an array. Stop the loop by typing in ‐1. Your main method should call an Average method that returns the average of the grades.I There's something wrong with my program , the count always stays 0 and the sum is always 1 less than the actual sum.Sample input and output :
Enter grade 1: 8
Enter grade 2: 9
Enter grade 3: 10
Enter grade 4: 5
Enter grade 5: 8
Enter grade 6: 9
Enter grade 7: -1
output
Average grade is 8.1666666667On line 13 I had count=count+1 ;
Program That Continuously Asks For Alphabet Letter And Stops When Non-Alphabet Letter Entered
Oct 8, 2014Write a program that continuously asks for an alphabet letter, and stops when a non-alphabet letter is entered. Then output the number of upper case letters, lower case letters, and vowels entered ....
View Replies View RelatedCreate A Menu Where The User Can Create A New Account?
Oct 5, 2014I'm having some difficulty with my bank account project. I'm supposed to create a menu where the user can create a new account, withdraw, deposit, view their balance, and exit. There's issues with the account creation.
Here's my necessitated class below: BankAccount, TestBankAccount, SavingsAccount, CurrentAccount, and Bank
/*---------------------------------------------------
Plagiarism Statement
I certify that this assignment is my own work and that I have not copied in part or whole or otherwise plagiarized the work of other students and/or persons.
----------------------------------------------------------*/
package BankAccount;
import java.util.Date;
import java.util.Random;
//Project 3
public class BankAccount {
protected static int accountID;
[code]....
Java Program That Will Ask A User To Input Grades Until User Inputs Sentinel Value
Apr 9, 2014Write a java program that will ask a user to input grades until the user inputs the sentinel value -1. The program should test each input to determine whether 0<=grade<=100. If the grade entered is within this range, the program should print "Grade accepted;" if not, the program should print "Invalid input".
View Replies View RelatedProgram That Takes User Odd Number And Print Prime Numbers Lower Than User Input
Nov 4, 2014I have been struggling with this program for weeks. This program is supposed to take a user's inputted odd number and then print out all prime numbers lower than that number.
public class PrimeNumber
{
Scanner scan = new Scanner(System.in);
int userNum;
String neg;
public void getUserNum()
[code]...
Create Little Program Which Enter Number / Program Says Triangle Exist Or Not
Mar 16, 2014i want create little program which enter the number, ant program says triangle exist or not. So code :
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
[code]...
So when i put first num like 1, next num like 2 and next num like 100 , program says Triangle exist.
Create 2D Array Out Of CSV File And Find Number Of Elements To Determine Array Size
Mar 24, 2015I am taking the Class Algorithms and Datastructures and got an assignment for Lab that really throws me off. The goal is to create an Array out of a given CSV file, implement several Methods that get the size of array, etc.
I am still stuck in the first part where the CSV has to be imported into the Array. My problem is that I need a mechanism that figures out the needed size for the Array, creates the array, and only then transfers the data from the CSV.
The list consists of the following wifi related values:
MAC-Adress, SSID, Timestamp, Signalstrength.
These are on the list, separated by comma. The Columns are each of these, and the rows are the four types of values making up the information on a certain wifi network.
The catch is, we are not allowed to use any of the following:
java.util.ArrayList
java.util.Arrays
and any class out of java.util.Collection.
So far I used the BufferedReader to read in the file and tried to implement the array, but I get an arrayindexoutofboundsexception.
Below is my Code (Its still an active construction zone):
public class WhatsThere {
public WhatsThere(String wifiscan) throws IOException {
}
public static void main(String[] args) throws IOException {
// WhatsThere Liste = new WhatsThere(String wifiscan);
String[][] arrayListe = new String[0][0];
[Code] ....
Create Set - Allow User To Add Or Remove Toppings
Oct 18, 2014I basically need to allow the user to add or remove toppings on the pizza once it is created. I am new to code (steps included). We are supposed to use enums and sets.
package pizza;
public class Pizza {
// Declare enums
public enum Size{
SMALL,
MEDIUM,
LARGE,
JUMBO
[code]....
I started this this is what I have currently I have an error here:
private Set<Topping> setOfToppings = new EnumSet<Topping>(Topping.class);
I am sure it is because I haven't set it up correctly.
How To Get User Input And Create Variable
Sep 16, 2014Okay, so I know how to get user input and create a variable from the input, create a basic addition sum etc...
So I have this code:
package calc;
import java.util.Scanner;
class calc{
private static final double add = 0;
private static final double subtract = 0;
public static void main(String args[]){
[Code] .....
I'm basically trying to make it so that when the user enters tnum, tnum2, tnum3 and tnum4, their answer turns to the variable which has to be either true or false to make the boolean work. I don't know really how to do this. I want to make it so that if they enter yes, then that makes the boolean true and the numbers will multiply and create the answer variable. If they enter no then the boolean is false and it moves onto the next if statement. How can I do this?
Reading User Input From JTextField As Int To Create Matrix
Sep 16, 2014I am required to read user input to create two matrices which will eventually be added together. I am unsure as to how I can read the input from the user as an int and not a String. The input is from size 0-10 for both column and row size. Also, can you have a new button created in the actionPerformed method of a previous button?
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
public class Matrices implements ActionListener {
private JFrame win1, win2, win3, win4;
[Code]...
Create User Interface That Will Allow Customer To Select Any Category Or Subcategory
Jun 25, 2014I have a database containing products which are separated in categories and subcategories.I want to create a user interface that will allow the customer to select any category or subcategory and load the products in the main application window.My problem is that i dont like tree do you know any alternative of tree that i can use ?
View Replies View RelatedHow To Create New Customer Object Each Time User Chooses 1 As Option
Feb 17, 2015import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;
public class App {
public static void main(String[] args) throws IOException {
Scanner keyboard = new Scanner(System.in);
System.out.println("Please Select an option > ");
[Code] .....
Swing/AWT/SWT :: Create A Basic Graphical User Interface For Sequence Translation
Mar 3, 2015I am trying to create a basic graphical user interface for sequence translation (including a JTextField for the description of a sequence and status of function button pressed e.g. “simple” translation and input and output TextFields). This involves a number of different class files. I cannot get my user interface to do what I want and I think I have problems with my "actionPerformed" method. How the code should be linked together?
public void actionPerformed(ActionEvent event) {
try {
// Get the description, content and result
String d = tool.getDescription();
String input = tool.getInputText();
Stringr = translation.getResult();
[code]....
Swing/AWT/SWT :: GUI - Create User Interface That Interacts With Setters And Getters Of Some Classes
Apr 14, 2014I am new a creating GUIs and am not quite sure how to correctly make one. I have done the inheritance parts, and created two extra appliances: a washer and dryer. Now Creating the GUI ....
Here are the instructions to my project.
Introduction to GUIs (+ some inheritance)
For this assignment, you are going to create a user interface that interacts with the setters and getters of some classes that you will create.
First, create an abstract class called Appliance. This abstract class should have two attributes (dealing with household appliances) and two abstract methods called turnOn() and turnOff(). These methods should return void.
Then, create two subclasses of Appliance that represent household appliances (like a Refrigerator or Stove ((don't use those!))). These subclasses should have two attributes that are specific to the various appliance. Each subclass should implement the turnOn() and turnOff() methods. These methods should print to the command line some information about the appliance as it turns on and off.
Now, the fun part! Create a GUI interface!
Your window should have two panels: one for each appliance subclass. Each panel should have 4 textboxes (with appropriate labels) to receive/display information that correspond to the 4 attributes (2 from Appliance and 2 from the subclass) for each subclass.You also need 2 buttons on each panel: A Get button and a Set button.
When the Get button is pressed, the text boxes should be filled with the information from the instantiated object of the appropriate subclass. When the Set button is pressed, the object should then contain the information contained that the user has altered.
In your main method, you should create an object of each subclass, and prefill it with information (either using the constructor or the setters), then display your GUI. You should now be able to get and set the information for your objects from the GUI.
At least one of your attributes for each subclass should be numeric
Note that you will need to handle incorrectly formatted input (You can use exception handling to do this if you want to. Wrapper classes also will work)
If there is text in the boxes when the "Get" button is pressed, it should be overwritten by what is in the object. Remember that these two panels should both be on screen at the same time.
You don't need 2 different windows, one window: 2 panels.
Create A Simple User Database That Could Eventually Turn Into A Login System
Jun 6, 2014So I'm trying to create a simple user database that I could eventually turn into a login system. I created a simple table on MySQL with a name and address for the sake of simplicity. I tried to create simple statement inside my main method that would connect to my MySQL server and when I run my program I get a ClassNotFoundException from "org.gjt.mm.mysql.Driver"..Here is what I have in my main method thus far:
public static void main(String args[]) {
try {
Class.forName("org.gjt.mm.mysql.Driver"); //Load the driver
Connection conn = DriverManager.getConnection("jdbc:mysql://localhost/data", "root", ""); //Connect
/*
conn.createStatement().execute("CREATE TABLE people (" + "id int(64) NOT NULL AUTO_INCREMENT," + "name varchar(255) NOT NULL," + "address varchar(255) NOT NULL," + "UNIQUE (id)," + "FULLTEXT(name, address))");
[code]....
I downloaded Connector/J in the the binary .zip form and extracted it to my C: drive and put the .jar file into my java directories lib folder. I also added the directory of the .jar file into my CLASSPATH and I still get the exception.