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Check if a String is a Pangram in Java 1. Overview In this tutorial, we will learn to check, if a given string is valid pangram or not using a simple Java program. A pangram is any string that contains all letters of a given alphabet set at least once. 2.… Continue Reading java-string-pangram
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BIRT Reporting with Spring Boot 1. Introduction In this tutorial, we’re going to integrate BIRT (Business Intelligence and Reporting Tools) with Spring Boot MVC, to serve static and dynamic reports in HTML and PDF format. 2. What is BIRT BIRT is an open source engine to create data visualizations that… Continue Reading birt-reports-spring-boot
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EasyMock Argument Matchers 1. Overview In this tutorial, we’ll explore EasyMock argument matchers. We’ll discuss different types of predefined matchers and how to create a custom matcher as well. We already covered EasyMock basics in the introduction to EasyMock article, so you may need to read it first to get yourself… Continue Reading easymock-argument-matchers
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Java – Write a Reader to File In this quick tutorial, we’re going to write the contents of a Reader to a File using plain Java, then Guava and finally the Apache Commons IO library. This article is part of the “Java – Back to Basic” series here on Baeldung.… Continue Reading java-write-reader-to-file
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Interpreter Design Pattern in Java 1. Overview In this tutorial, we’ll introduce one of the behavioral GoF design patterns – the Interpreter. At first, we’ll give an overview of its purpose and explain the problem it tries to solve. Then, we’ll have a look at Interpreter’s UML diagram and implementation… Continue Reading java-interpreter-pattern
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Shutdown a Spring Boot Application 1. Overview Managing the lifecycle of Spring Boot Application is very important for a production-ready system. The Spring container handles the creation, initialization, and destruction of all the Beans with the help of the ApplicationContext. The emphasize of this write-up is the destruction phase of… Continue Reading spring-boot-shutdown
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Introduction to Javassist 1. Overview In this article, we will be looking at the Javasisst (Java Programming Assistant) library. Simply put, this library makes the process of manipulating Java bytecode simpler by using a high-level API than the one in the JDK. 2. Maven Dependency To add the Javassist library… Continue Reading javassist
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Exception Handling in Java 1. Overview In this tutorial, we’ll go through the basics of exception handling in Java as well as some of its gotchas. 2. First Principles ==== 2.1. What is it? To better understand exceptions and exception handling, let’s make a real-life comparison. Imagine that we order… Continue Reading java-exceptions
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Quick Guide to MapStruct 1. Overview In this article, we’ll explore the use of MapStruct which is, simply put, a Java Bean mapper. This API contains functions that automatically map between two Java Beans. With MapStruct we only need to create the interface, and the library will automatically create a… Continue Reading mapstruct
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Find the Intersection of Two Lines in Java 1. Overview In this quick tutorial, we’ll show how to find the point of intersection of two lines defined by the linear functions in the slope-intercept form. 2. The Math Formula of Intersection Any straight line (except vertical) on a plane can be defined by… Continue Reading java-intersection-of-two-lines
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