Create a Project with Create React App Creating an API seems to be the easy part these days, thanks in large part to Spring Boot. In this section, I hope to show you that creating a UI with React is pretty easy too. If you follow the steps below, you’ll create a new React app,… Read More Create a Project with Create React App
Progressive Web Apps with Angular I started my PWAs learning journey while sitting in a conference session with Josh Crowther at The Rich Web Experience. His Progressive Web Apps: The Future of the Web presentation taught me everything I needed to know to get started. However, his examples used Polymer and I wanted to create a PWA with Angular. When… Read More Progressive Web Apps with Angular
Create a Project with Angular CLI It’s cool that you created an API to display a list of beers, but APIs aren’t that cool without a UI. In this section, you’ll create a new Angular app, build services to fetch beers/images, and create components to display this data. To create an Angular project, make sure you have Node.js and… Read More Create a Project with Angular CLI
Resetting the Root Password: Windows Systems On Windows, use the following procedure to reset the password for the MySQL ‘root’@’localhost’ account. To change the password for a root account with a different host name part, modify the instructions to use that host name. Log on to your system as Administrator. Stop the MySQL server if it is running. For… Read More Resetting the Root Password in MySQL: Windows Systems
three thread states—new, runnable and terminated A program can access the state of the thread using Thread.State enumeration. The Thread class has the getState() instance method, which returns the current state of the thread. BasicThreadStates.java package com.appfworks.threads;/** * Created by suresh on 03/11/15. */class BasicThreadStates extends Thread { public static void main(String []s) throws Exception… Read More The States of a Thread in Java
Running multiple threads in parallel at the same time is called multi-threading or concurrency. The Object and Thread classes and the Runnable interface provide the necessary support for concurrency in Java. The Object class has methods like wait(), notify()/notifyAll(), etc., which are useful for multi-threading. all the objects have some basic multi-threading capabilities Important Threading-Related… Read More Concurrent Programming in Java
There are two options: you can extend either the Exception or RuntimeException class depending on your need. If you want to force the users of your custom exception to handle the exception, then you can extend your exception class from the Exception class, which will make your custom exception a checked exception. If you want… Read More Custom Exceptions in Java
Exception handling constructs such as the throw statement, throws clause, and catch clause deal only with Throwable and its subclasses. There are three important subclasses of Throwable that you need to learn in detail: the Error, Exception, and RuntimeException The Exception Class Exceptions of type Exception are known as checked exceptions. If code can throw… Read More Exception Types in Java
It is a fairly common mistake by Java programmers to forget releasing resources, even in the finally block. Also, if you’re dealing with multiple resources, it is tedious to remember to call the close() method in the finally block. Java 7 introduced a feature named try-with-resources to help make your life easier. Make sure you… Read More Try-with-Resources in Java
Java has built-in support for exceptions. The Java language supports exception handling in the form of the throw, throws, try, catch, and finally keywords. Throwing Exceptions if(args.length == 0) {// no arguments passed – throw an exceptionthrow new IllegalArgumentException(“No input passed to echo command”);} the throw keyword followed by the exception object. Here you make… Read More Exception Handling in Java
Suresh Sekar's Architecture Introspection 