You will learn the 3 ways of handling exceptions in a Java web applications:
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Java is a commonly used language for web development, especially on the server-side. Java web applications are distributed applications that run on the internet. Web development with Java allows us to create dynamic web pages where users can interact with the interface.
There are various ways through which you can create dynamic web pages in Java. The Java EE (Enterprise Edition) platform provides various Java technologies for web development to developers. Services like distributed computing, web services, etc. are provided by Java EE. Applications can be developed in Java without using any additional scripting language. Let us see how web applications are made via Java.
#software development #java #java web applications #web applications #java web application technologies #top 5 java web application technologies you should master
OpenJDk or Open Java Development Kit is a free, open-source framework of the Java Platform, Standard Edition (or Java SE). It contains the virtual machine, the Java Class Library, and the Java compiler. The difference between the Oracle OpenJDK and Oracle JDK is that OpenJDK is a source code reference point for the open-source model. Simultaneously, the Oracle JDK is a continuation or advanced model of the OpenJDK, which is not open source and requires a license to use.
In this article, we will be installing OpenJDK on Centos 8.
#tutorials #alternatives #centos #centos 8 #configuration #dnf #frameworks #java #java development kit #java ee #java environment variables #java framework #java jdk #java jre #java platform #java sdk #java se #jdk #jre #open java development kit #open source #openjdk #openjdk 11 #openjdk 8 #openjdk runtime environment
When and how to use checked and unchecked exceptions
Since the invention of the Java language, there has been a long-standing debate about checked versus unchecked/runtime exceptions. Some people argue that checked exceptions promote a better design. Others feel that checked exceptions get in the way, especially as systems mature and refactor over time, and therefore unchecked exceptions are better. The Effective Java Exceptions article settles this debate once and for all: both checked and unchecked exceptions are acceptable, and each has its purpose within an application. I highly recommend reading that article. I will refer back to its concepts and terminology going forward.
#java #exception handling #exception handling in java #exception in java
The throws keyword in Java allows developers to check their code for invalid entry and prepare further steps if an exception occurs.
Learn about the throws keyword in Java with examples. In simple words, the throws keyword is used to declare an exception. It gives an indication to the developer about the exception that may occur. It is better for the developer to provide the exception handling code so that the normal flow of the program is maintained. There are two ways to handle the code:
What will happen if you do not handle the code? You will get a compilation error if the exception is a checked exception.
#java #exception handling #keyword #exception handling in java #example code #exception handling tutorial in java #throws
In Java, the program that is coded by the programmer can be used in a very unexpected way by the user, due to this, the program may fail in different sort of ways during execution. The main objective of a programmer should be to write a code that does not fail unexpectedly. That unexpected stopping of the program while execution is known as an exception, it disrupts the normal execution flow of a program.
An exception is an event that interrupts the normal flow of execution. It is a disruption during the execution of the Java program. The Exception Handling in Java is one of the powerful mechanisms to handle runtime errors so that the normal flow of the application can be maintained. Let’s see the difference between Error v/s Exception.
#java #exception #java exception handling