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36 Posted Topics
 | So, I've created a program that when a user inputs a type of vehicle, it will print how much will the user pay for their fare. Here's what I have so far: How do I call the methods Vehicle, Vehicle1, etc.. so that I am able to print the fare …  |
| | Hello guys. I am currently developing a Case Management System with a versioning function. The versioning function will allow top management to see the different versions of a document and the different changes that were made by either the lawyer or top management. My problem is, how would I start …  |
| | Hello guys! I'm currently working on a matching app. In the app, the user can select what mode of difficulty they want(easy, medium, hard and suvival) as well as select one of the sets of images for the GridView(nba logos or world flags). My problem is that when the user … |
| | Hey guys! I'm currently working on a simple matching game. The game has 3 difficulties: easy, medium, and hard. When the game starts up, it is already set to the easy difficulty with 12 tiles. Medium difficulty displays 20 tiles and hard difficulty displays 30 tiles. I've figured out how … |
| | Hello guys! I'm trying to create a countdown timer for a memory app. The user is given about 5-10 seconds to look at the gridview of pictures then the countdown timer starts. I was wondering how I can achieve this. The code below shows the countdown timer which starts at … |
| | Hello guys. I'm creating a web application on Netbeans. Under Source Packages, I've created: - DAO Factories for Customer, Inquiries, and Employee; -DB Connection to establish connectivity with a database I've created; -Entities which include Customer, Inquiries, and Employee; -Servlets containing Login, Reservations, EmployeeRegistration. I'm just wondering if my understanding …  |
| | Hello guys! I need advice. So I'm working on a Reservation feature of a system. I have created a DAO's for Customer, Employee, and CustomerInquiries. I will explain to you how this works first. The customer creates a "customer inquiry" on the company website to inquire about rental of buses. … |
| | Hello guys. I'm trying to create a registration form that takes in employee information. The error I'm getting is: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')' at line 1 I'm …  |
| | Hello guys, I'm trying to add an object called product into an ArrayList of orders. I'm getting an error: no suitable method found for add(Product). Did I miss anything? This is my addOrder method: public void addOrder(ArrayList<Order> orders, Product product){ orders.add(product); } I've passed the ArrayList of orders and the … |
| | Hello guys! I'm trying to call a method in main called "buyProduct" which displays all products to the user. I' a getting a NullPointerException though. Here's what I have: public static void main(String[] args) { OnlineShopping shop = new OnlineShopping(); ArrayList<Cart> carts = new ArrayList<Cart>(); ArrayList<Order> orders = new ArrayList<Order>(); … |
| | Hello guys! I'm working a project and it seems that there's something wrong with my switch-case. For example, in the user menu, the user can input the number 2 then it would allow them to deposit, but somehow, it keeps displaying the first switch-case. switch(resp){ case 1: users.get(0).displayProfile(); users.get(0).editProfile(); break; … |
| | Hello guys! So I'm trying to create this online shopping system for a project. I was wondering if there is a way to gather user input piece by piece then consolidating them in an ArrayList? The first part I'm working on is the registration part. I'm planning to make the … |
| | Hello there! I've created a method that searches for the customer with the highest deposit. Here's what I have so far: public Customer searchHighestDeposit(ArrayList<Customer> customers){ for(int i=0; i<customers.size();i++) if(customers.get(i).getBankAccount().getBalance()>customers.get(i+1).getBankAccount().getBalance()) return customers.get(i); else return customers.get(i+1); return null; The output is kinda weird: "The customer with the highest deposit is: bank.Customer@c390508" The … |
| | Hey guys! So I'm working on a program that accepts 7 user inputs then stores them in an ArrayList. Then it replaces elements that start with the letter "B" with an aterisk. I'm getting a IndexOutOfBoundsException. Here's the code I have: ` package arraylist1; import java.util.*; public class ArrayList1 { … |
| | Hey guys! So I'm making simple PetShop program based on an UML diagram I did. Anyway, I have 4 classes: PetShop(It's the main class), Pet, Customer, Transaction. I'm having an error on line 22 saying it cannot find symbol. I have the adopt() method in the Transaction class. Here's what … |
| | Hey guys! So the error I'm getting is "cannot reference hoursWorked before supertype constructor has been called". I've just recently learned about using abstract, extends, and the keyword "super". What should I do in order to get rid of the error? Am I missing something? Here's my code so far: … |
| | We're creating a program based on the Opportunity card game. On each of the player's turn to draw, they have a 10% chance of drawing two cards instead of one at the price of 1000. How should we implement this? Thanks |
| | Hey guys! So I'm trying to make a simple program that prints out the attributes of "Person". I'm kinda still practicing with java so I'm not sure what the errors are about. Here's what I have: Driver: public class Driver { public static void main(String[] args) { Person a = … |
| | Hey guys! I'm writing this really long code for practice. Got really rusty with Java so I gotta get brain working again. Anyway, the first part of the code asks the user for the number of employees; the for loop then keeps asking the user to input employee names depending …  |
| | Hey guys! So I'm writing a program that takes in a user input (1-3) and then executes the corresponding method. I keep getting the wrong output. For example, for prob1 when I input "john doe" it prints "Unauthorized!". And I'm like, foolish computer! I am your MASTER! How can I … |
| | Hey guys! So I'm writing a code that takes 10 numbers from the user which is stored in a array. The user then inputs the problem number (1 or 2) depending on what they want to do to the array. Unfortunately, I'm getting and error on line `array[i].prob1(); `.. Here's … |
| | Hey guys! I have this program I'm working on, but I keep getting an error in my main class. Here's what I have: import java.util.Scanner; public class TicketingSystem { public static void main(String[] args) { Game game = new Game(); Scanner input = new Scanner (System.in); String teamName; game.addTeam(new Team(teamName)); …  |
| | Hey guys! I'm working on this project of mine and I can't seem to get it to work. It keeps saying that I haven't initialized the variables: name, address, email, contactNumber, numberOfVisits. I currently have 3 classes in the package: PagamutanClinic, Clinic, and Patient. Here's my Main: import java.util.Scanner; public … |
| | Hey guys! I'm trying to create a program that first asks the user for an integer input *n*. The program will then ask the user for *n* Strings and store these in the array. This is what I have so far: public static void main (String args[]){ String[] strArray; int … |
| | Hello guys! I need help. I have two forms: Input and Output. On the Input form, the user/s will have to input their name/s and times in which they are busy. When they click "finished", the Output form is supposed to display what they typed like their names and times. … |
| | Hey guys! So I'm trying to create a method that takes in a list of integers into an array and prints the elements inside the array line by line. How do I print the the elements? Here's what I have so far: public class Main { /** * @param args … |
| | Hey guys, I'm trying to make this program that allows a person to set the size of an array to any value they choose. Then, the program will ask the user to input n values to be stored in the array at the corresponding index. Then the program modifies each … |
| | Hey guys! I'm working on a console calculator. My problem is that how would I perform the inputted operator? So, if the user inputs "+" and a "-" it will perform those. Here's what I have so far: [code] import java.util.Scanner; public class Calculator { public static void main (String …  |
| | Hey guys! I've created a simple program that given the current day and how many days from the current day, it will determine if it's a Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, where 1 Sun, 2 -Mon, 3-Tues, 4 -Wed, 5 -Thurs, 6 -Fri, 7-Sat My problem is that …  |
| | Hey guys! I need help... I have a text field and table that I made on NetBeans. I'm working on GUI. Anyway, in this text field, the user inputs his/her name. And the user's name is displayed on the "User 1" heading of the table: [code] jTable1.setModel(new javax.swing.table.DefaultTableModel( new Object … |
| | I'm currently working on a project for my JAVA class. The user picks, from a two dropdown boxes, the times he is busy (military time). And at the bottom of the form, there is a table which displays the times he is busy, and the tables arranges the times from … |
| | So I'm creating a program that calculates the “Sum of Powers” after the user inputs two integers N and M. The sum of powers is computed as N^M+ N^(M-1)+ N^(M-2)….+N^0. But I don't know how to finish it. I'm kinda confused using return method, loops, etc. Here's what I have … |
| | Hey guys! I'm trying to create an accounting system, one that can create worksheets, create balance sheets, etc.. Is it easier to do this in Java or some other programming language. Got any suggestions on how I can accomplish this? |
| | I created a program on NetBeans. The package contains three files: MainProject.java, Input.java, and Output.java. When I run the MainProject.java file on JCreator, it opens up the Input.java form, but when I click the "finished" button on the Input form, it doesn't open the Output form. How do I fix …  |
| | So, I created two forms: Input and Output. In the Input form, the user inputs the required information such as name and schedule. Then when the user is finished, he/she will click the "finished" button which brings up the Output form which has all the inputted info from the Input … |
| | Hey guys! I've been creating this program that takes in an input from the user, and if the user is done inputting the required information, the user clicks on the "Ok" button and it opens another form which displays the info that the user inputted from the first form. My … |
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