35,618 Topics
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| | Hi, Question. How does UserDetailsService catch the username that I have submitted in the custom login page which I have created? TIA :) |
 | I have written a code to generate bar codes and saved them to a pdf file . The code executes successfylly but the PDF file does not open saying giving an error whome picture I am uploading. Please see my code and Picture with the error.  public void createPDF(String … |
| | Hi java coder here im converting a program into delphi for a project basicaly ive forgotten my whole delphi maths soo can anyone convert this into delphi [CODE](l1 & 0x2 ^ 0xffffffff) == -3;[/CODE]  |
| | There is a network of tracks (list), tracks are of two types - standard (with one start and one end point) and with a fork ( one start and two end points). These points are called nodes. It is known that each track can only be connected to one other …  |
| | Hello! This is my first time trying to use Java, and I was trying to learn something with the "Scanner userInput" and ".nextInt()". After I put a bit of code on, it showed me: Exception in thread "main" java.util.InputMismatchException at java.util.Scanner.throwFor(Unknown Source) at java.util.Scanner.next(Unknown Source) at java.util.Scanner.nextInt(Unknown Source) at java.util.Scanner.nextInt(Unknown …  |
| | Im just learning javascript and want to make a code for a prank on my friend. I want it that when i plug in a certain usb it will pop up a fake virus alert after a couple of seconds, and when you exit off it will pull back up … |
 | Create a Java program that will compute for the average (Final Grade) of three (3) input numbers (Prelim, Midterm, Pre-final). The input grade should ONLY accept values ranges from 70 to 100, and will display a message if the input grade/s is invalid. The program should also be capable of …  |
| | Hello I have a abstract class: import javax.swing.JOptionPane; public abstract class Question { static int nQuestions = 0; static int nCorrect = 0; String question; String correctAnswer; abstract String ask(); void check() { nQuestions++; String answer = ask(); if (answer.equals(correctAnswer)) { JOptionPane.showMessageDialog(null,"Correct!"); nCorrect++; } else { JOptionPane.showMessageDialog(null,"Incorrect. The correctanswer is … |
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| | Does anybody know a good way to break a screen up into multiple sections for filling out lengthy multi section data? I would like something that I can break data inputs up into sections and move onto the next section when I finish filliing out a section prior, sequentially. What … |
| | I have a program that i need to convert from java to c++... i just need help doing it... heres the java: [code] /* Name: Joseph Coleman Class:CSCI 1302 Assignment: Employee + ProductionWorker Academic Honesty: The integrity of students and their written and oral work is a critical component of … |
| | I made a JavaFX Discord Server for people who like to talk about JavaFX stuff, or need help with certain projects, I really like to work with java, especially with people who are working with JavaFX (: Here is the discord link: https://discord.gg/yZ3Y3Fd or https://discord.gg/AzFaNU |
| | How do I make a cube in javafx that have 6 different textures on each side of the cube? The only way I know how to solve this, is by making 6 imageviews and give them each a specific coordinates that make them look like a cube. Is there a … |
| | public class HashedClass{ int ticketNumber; // keyfield string purchaserName; Hashtable hashtable = new Hashtable(); insert(); fetch(); delete(); update(); } I started a pseudocode above, but I know it needs more work. Are there any resources that can help guide me to implementing my …  |
| | I am crafting a code generator for something, and I have encountered some things that I do not know yet. Excuse the scambled eggs in this code, but could you please tell me what a job is, and how to get it to run a stored procedure for me? I …  |
| | Does anyone know a good Java machine learning library I can use for a commercial product? Weka and Rapidminer unfortunately do not allow this. I already found Apache Mahout and Java Data Mininng Package. Has anyone experience with them and provide some decision support? The task calls for clustering and … |
| | Having 4 years of experience in [Machine Learning](https://intellipaat.com/blog/tutorial/machine-learning-tutorial/) and Artificial Intelligence with the background of B.Tech in Computer Science and Robotics. Having this experience took me to another level to training professionals who are looking to skill-up their knowledge in Machine learning and AI and helps to enhance their skills.  |
 | p=int(input("Enter money: ฿ ")) n=int(input("Enter price: -฿ ")) x=p-n print("Change is ฿",(x)) print("Bank 1000 =",(x//1000),('bill/bills')) print("Bank 500 =",(x%1000//500),('bill/bills')) print("Bank 100 =",(x%1000%500//100),('bill/bills')) print("Bank 50 =",(x%1000%500%100//50),('bill/bills')) print("Bank 20 =",(x%1000%500%100%50//20),('bill/bills')) print("Coin 10 =",(x%1000%500%100%50%20//10),('coin/coins')) print("Coin 5 =",(x%1000%500%100%50%20%10//5),('coin/coins')) print("Coin 2 =",(x%1000%500%100%50%20%10%5//2),('coin/coins')) print("Coin 1 =",(x%1000%500%100%50%20%10%5%2//1),('coin/coins')) q=x//1000 w=x%1000//500 e=x%1000%500//100 r=x%1000%500%100//50 t=x%1000%500%100%50//20 y=x%1000%500%100%50%20//10 u=x%1000%500%100%50%20%10//5 i=x%1000%500%100%50%20%10%5//2 o=x%1000%500%100%50%20%10%5%2//1 l=q+w+e+r+t+y+u+i+o print("all …  |
| | So, I am a post grad student in the software development field, and I am not working at the moment, but I have some questions on Business Rules, User Stories, etc. So I was wondering if perhaps we could open up a discussion here on some of the common business … |
| | hello everybody im trying to compute the log(n) while n in the first time =10 and second time =100 , third =1000 and fourth = 10000 but an error still happenening the error is math domain error can anybody help in this code and error import math import logging n … |
| | Connect your website you must first access HTML content on your website and add the icon. • Copy the pre-authorized icon in HTML content for your website • Then, go to your main page for AdSense to confirm the completion of this step. Copy this icon and paste it << … |
| | Hi, Mr Dani Horrowitz, Founder Java NetBeans 'random' numbers between 1 and 100 using the U set for myself, I'm single and multiple 10 to choose a number you want to create an array. I want to get these numbers from the output via single and multiple array and random. … |
 | Hi all, I'm having some issues with the Scanner not waiting for input from the keyboard. The first method processChoice takes the userChoice and the idea is that in the switch statement there is a call to a method getUserInputForProcessing that takes the action and there scanner takes an input … |
| | # Class 1 # import java.awt.Canvas; import java.awt.Color; import java.awt.image.BufferStrategy; import java.awt.Graphics; import java.lang.Runnable; import java.lang.Thread; import javax.swing.JFrame; import java.awt.image.BufferedImage; import javax.imageio.ImageIO; import java.io.IOException; public class Game extends JFrame implements Runnable{ private Canvas canvas = new Canvas(); private RenderHandler renderer; private BufferedImage testImage; private Rectangle testRectangle = new Rectangle(30, 90, … |
| | Hi All i am having a python code i have to convert this to java i have placed the code below import boto3 import sys import re import json def get_kv_map(file_name): with open(file_name, 'rb') as file: img_test = file.read() bytes_test = bytearray(img_test) print('Image loaded', file_name) # process using image bytes … |
 | hi, In my android studio build gradle is failed i dont know how so then i check the log and i saw this error Error:Could not find method compile() for arguments [com.android.support:recyclerview-v7:25.3.1] on object of type org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyHandler. Please install the Android Support Repository from the Android SDK Manager. Open Android … |
| | # Find minimum integer coefficients for a chemical reaction like # A * NaOH + B * H2SO4 -> C * Na2SO4 + D * H20 import sympy import re # match a single element and optional count, like Na2 ELEMENT_CLAUSE = re.compile("([A-Z][a-z]?)([0-9]*)") def parse_compound(compound): """ Given a chemical compound … |
| | Is there a way to solve for a system of multiple equations with multiple variables and variables on both sides in java Lets say im given three (or more) equations in an array list or array like so... 4A=1C 10A=2D 2B=2C+1D and im allowed to set one variable equal to … |
| | How can I minify my code in here, I am giving each 23 total imageview a eventhandler. code works, but I like to make the code shorter. I tried to use for loops to shorten the code. here is a example what I tried to do: for (int i = … |
| | when i am trying to insert date into the datefield of the oracle then date value are stored in to database but each date value are same like DOB 01-JAN-70 01-JAN-70 01-JAN-70 public class practicdate { JDateChooser dateChooser,dateChooser1; practicdate(){ dateChooser = new JDateChooser(); dateChooser.setBounds(200, 200, 150, 20); getContentPane().add(dateChooser); public void … |
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