In Jaspersoft studio 6, How to calculate total for a particular row in crosstab

I am using in Jaspersoft studio 6 and currently working with crosstab. I am a newbie in crosstab and have just started using it. I have created a jrxml file with crosstab(with lots of trial and error, I might add) as follows <?xml version=”1.0″ encoding=”UTF-8″?> <!– Created with Jaspersoft Studio version 6.2.0.final using JasperReports Library … Read more

Create the Classic Space Invaders Game with JavaScript and HTML | by Nicolai B. Andersen | Jun, 2022

A tutorial to recreate Space Invaders with HTML and JavaScript A GIF showing the game created in the article. Do you want to add a simple 2D game to your website? Or do you want to learn the basics of creating 2D games? This article explains how to recreate the classic Space Invaders game for … Read more

java – What is a good way to make an application selector layout?

I, personally, would start with a JList with a HORIZONTAL_WRAP See How to Use Lists for more details For example… import java.awt.BorderLayout; import java.awt.Color; import java.awt.Component; import java.awt.EventQueue; import java.awt.Image; import java.io.IOException; import java.util.ArrayList; import java.util.Arrays; import java.util.List; import java.util.logging.Level; import java.util.logging.Logger; import javax.imageio.ImageIO; import javax.swing.DefaultListCellRenderer; import javax.swing.DefaultListModel; import javax.swing.ImageIcon; import javax.swing.JFrame; import javax.swing.JList; import … Read more

reactjs – How to set react routing?

App.js import ‘bootstrap/dist/css/bootstrap.min.css’; import React from ‘react’; import { BrowserRouter, Routes, Route } from ‘react-router-dom’; function App() { return ( <> <BrowserRouter> <Routes> <Route path=”https://stackoverflow.com/” element={<Home />} /> <Route path=”/student-register” element={<StudentSignup />} /> <Route path=”/staff-register” element={<StaffSignup />} /> <Route path=”/login” element={<Login />} /> <Route path=”/create-group” element={<ProtectedRoute><CreateGroup/></ProtectedRoute>} /> <Route path=”/request-supervisor” element={<ProtectedRoute><RequestSuperVisor/></ProtectedRoute>} /> <Route path=”/request-cosupervisor” element={<ProtectedRoute><RequestCoSuperVisor/></ProtectedRoute>} /> … Read more

reactjs – I’m having errors in both backend and frontend. Koa & React

When I’m going to run the code it gives the following error. npm ERR! code ELIFECYCLE npm ERR! errno 1 npm ERR! react-app@1.0.0 start: webpack-dev-server –mode development –open –hot –port 3000 npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the react-app@1.0.0 start script. npm ERR! This is probably not a problem with … Read more

r – How to center ggplot label on multiple geom_pointranges (three or more)?

I created a point range chart in ggplot2 but the labels are not directly centered over the points (see the figure and the code below). How do I center each label over its respective point in this plot? I have asked this question before but the solution only works for two point ranges, not three. … Read more

node.js – “$pull” doesn’t delete the embedded documents of mongoose array

Backend – IndexJS const Koa = require(“Koa”); const client = require(“./dal/”); const bodyParser = require(“koa-bodyparser”); const cors = require(“@koa/cors”); const app = new Koa(); app.use(cors()); app.use(bodyParser()); const userRouter = require(“./routes/users.router”); app.use(userRouter.routes()).use(userRouter.allowedMethods()); const subjectsRouter = require(“./routes/subjects.router”); app.use(subjectsRouter.routes()).use(subjectsRouter.allowedMethods()); const courseRouter = require(“./routes/courses.router”); app.use(courseRouter.routes()).use(courseRouter.allowedMethods()); app.listen(3000); console.log(“server running on port 3000”); Backend – Dal – IndexJS const { MongoClient … Read more

What You Should Know About Table Partition Pruning

Table partitioning is a very handy feature supported by several databases, including PostgreSQL, MySQL, Oracle, and YugabyteDB. This feature is useful when you need to split a large table into smaller independent pieces called partitioned tables or partitions. If you’re not familiar with this feature yet, consider the following simple example. Let’s pretend you develop … Read more