32,204 Topics
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 | ## Introduction ## There are many ways to design secure Java objects. In this tutorial, we are going to learn how to create secure Java objects by understanding **Accessibility**, **Extensibility**, and **Immutability**. ## Goals ## At the end of this tutorial, you would have learned: 1. Understand how and why …  |
 | Hi Everyone, Is there a java code to convert SWIFT MT103 message to pacs 008 ISO20022 format? Thank you. Regards, Sagar |
| | ## Introduction ## In this tutorial, we will focus on how to manage IO permissions to read, write, and delete local files using the `SecurityManager` class. ## Goals ## At the end of this tutorial, you would have learned: 1. What policy files are and how to use them. 2. … |
| | Hello, I need help to make this code to run please. this is just a part of the code. I have the imports below, but hsa.Console is not imported, I have tried to download de jar files for it but cannot find it. Is there a way I could make …  |
| | // The "FriedmanRPSgame" class. import java.awt.*; import hsa.Console; public class FriedmanRPSgame { static Console c; // The output console public static void main (String[] args) { c = new Console (); // VARIABLES int rock; int paper; int scissors; // INPUT c.println (" Choose 1 for rock, 2 for paper, … |
| | Hi, I am new to this forum and also new to android programming using Android Studio and am stuck on a coding problem so i am not sure this is the right forum but any help is much appreciated: I am trying to get some some code via the processing-core … |
| | Been programming more than half my life and been in industry for over a decade.  |
| | #include <iostream> using std::cin; using std::cout; using std::endl; using std::ios; #include <iomanip> using std::fixed; using std::setw; using std::setprecision; using std::showpoint; int main() { const int PEOPLE = 5; const int PRODUCTS = 6; int sales[5][6]={{1},{2},{3},{4}}; double value; double totalSales; double productSales[ PRODUCTS ] = { 0.0 }; int salesPerson; int … |
| | ## Introduction ## Java 14 was released with a new type of expression called Switch Expression. Its syntax is similar to that of the Switch Statement, with a few differences. In this tutorial, we will walk through concepts related to the Switch Expression and learn how to use it. ## … |
| | ## Introduction ## In this tutorial, we are going to learn how to create a Java module by hand. ## Goals ## At the end of this tutorial, you would have learned: 1. What a `module-info.java` file is. 2. How to compile a module. 3. Describing a module. ## Prerequisite … |
| | ## Introduction ## This tutorial introduces the `CyclicBarrier` class and teaches you how to use it. ## Goals ## At the end of this tutorial, you would have learned: 1. How to use `CyclicBarrier` to synchronize tasks across multiple threads. ## Prerequisite Knowledge ## 1. Intermediate Java. 2. Basic knowledge … |
| | ## Introduction ## `partitioningBy()` collects a `Stream` into a `Map`. In this tutorial, we will compare the two different `partitioningBy` methods and learn how to use them. ## Goals ## At the end of this tutorial, you would have learned: 1. What `Collectors.partitioningBy` does and how to use it. ## … |
| | ## Introduction ## Based on the 2020 Java Ecosystem survey from Jetbrains, 75% of Java developers are still using JDK 8. JDK 11 introduces `HttpClient`, which replaces the legacy `HttpURLConnection` API. For this tutorial, we will build a `HttpClient` that consumes the free Cat Facts API. ## Goals ## At … |
| | I am in trouble. I need to convert a signed 16-bit Hexadecimal no to short. Say I have a string s = "f2f7" Which is a negative number and lies in the range -32768 to 32767 so is the range of type short. But when I do short num ; … |
 | I am attaching my complete code. I am not able to get why doesn't my KeyListener work. None of the KeyListener events are fires on pressing the keyboard. Please have a look and tell me the flaws in my code package swing; //First Class (separated class) import javax.swing.JFrame; public class … |
| | ## Introduction ## This tutorial teaches you how to create a Spring Boot application that provides RESTful API Endpoints. These endpoints are best consumed by other applications or for integrating with a SPA (Single Page Application) frontend such as Angular. For the purpose of this tutorial, we will create a … |
 | Hello I am currently learning Android app development, and using Android Studio 4.1.3. I have noticed that when I run any project, even like a simple "Hello World", the Gradle build takes more than 10 minutes to complete. I have a laptop which is a Core i5 7th Gen, with …  |
| | ``` if (credits >= 30) { pnlSuccess.setVisible(true); pnlpass.setVisible(false); busdocRef.update("onbus", FieldValue.arrayUnion(txtRFID.getText())); busdocRef.update("passengers", FieldValue.increment(1)); docRef.update("travelling", Data.busid); docRef.update("slat", slat); docRef.update("slon", slon); txtRFID.setText(""); Thread.sleep(2000); pnlSuccess.setVisible(false); pnlpass.setVisible(true); txtRFID.requestFocus(); } ``` This si the code But the pass pnl do not hide and the success panel do not show up |
 | I've been writing one/two projects but I not using them. I'm not sure in which scenario I should use them. Is this consider bad programming style? |
 | /*******************************************************************************************************************| | Assignment 2 | | Program is meant to extract a record from each file and create a new file for each record | | Programs creates a new directory and uses the directory for each new file | | | | written by Raymond Chappel | | | … |
| | I work in IT as a UNIX Systems engineer and I am studying towards a BSc IT degree. |
| | HI!! How can I create an automatic numerical progression from 0 to 500,000 in html? The code I was given is this: <p><span style="font-family: Calibri, sans-serif;"><span style="text-shadow: rgba(255, 255, 255, 0.8) 0px 3px 2px;"><sup>437</sup></span></span></p> how can i make the code progressive and automatic every three minutes? The progression I have … |
| | Task is to create a basic calculator using double value and sentinel. I cannot figure out how to get the array to avoid counting the sentinel. To me, it looks like I've put in safeguards such as only looping if the value is >=0, but it still counts, lists, and … |
 | How to find the first non repeated character of a given String?  |
| | how to create 2 array matrix in dart programming  |
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| | Please am new here and I need you guys help am trying to save a fingerprint template into my database (Sql server) but is not working, this is my code Dim fingerprint as Memory stream = new MemoryStream Template.serializ(fingerprint) fingerprint.position=0 Dim be as BinaryReader = new BinaryReader (fingerprint) Dim bytes() … |
| | size = 10 for i in range(size) : for j in range(size) : if(i == j or size - j == i + 1) : print("* ", end = "") elif(i == size/2 - 1 or j == size/2 -1 or i == size/2 or j == size/2): print(" ", … |
| | how can i rerun the program using 'y' and 'n'?? package com.company; import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner reader = new Scanner(System.in); while (true) { System.out.print("Enter a number: "); int num = reader.nextInt(); if (num > 0) { String number = (num % … |
| | I want to explore more for my topics at any costs  |
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