Java Find Difference between two Strings using StringUtils Apache Commons Lang

In this post we will show you Java example code how to find the difference between two Strings using StringUtils utility class of Apache Commons Lang library.

Java check String is empty or blank or contains text using StringUtils Apache Commons Lang

In this post we are going to learn how to use StringUtils utility class of Apache Commons Lang library in Java application to check if a string contains text, an empty string or a blank string.

Generate Thumbnail Images in Java with Thumbnailator library

As a daily job of a web developer you usually have the scenario that you need to generate the thumbnail image from a large original image. This take can easily be done by the Thumbnailator library, an easy to use thumbnail generation library for Java. In this Java tutorial we are going to learn how to use the Thumbnailator library.

Top 3 Libraries for Writing and Reading CSV File in Java

In this tutorial we’re going to learn how to use open source Java libraries to quickly write and read Comma Separated Values or CSV file format. We will explore 3 useful libraries and implement Java programs to write and read CSV files using each library.

Apache POI Hide and Unhide Excel Row using Row.setZeroHeight()

In Excel there is an option to hide / Unhide a row by select the row then righ click on it and choose Hide / Unhide option. In this tutorial we will learn how to use Apache POI library in Java to create an Excel file and hide its row. Then we try to unhide it by another Java application example.

Apache POI Creating Multiple Fonts Excel Cell using RichTextString

In this tutorial we will learn how to create an Excel cell with multiple font styles using Apache POI library. We will implement different examples to create .xls and xlsx Excel file format using HSSFRichTextString and XSSFRichTextString class in Apache POI.

Creating PDF Document Page Labels in Java with Apache PDFBox

In PDF document format the page label to identify each document page visually for example showing text label on thumbnail panel on PDF reader application. In this Java tutorial we will learn how to create page labels for PDF document by Java application using Apache PDFBox library.

Creating Bookmarks for PDF Document in Java with Apache PDFBox

In this tutorial we will learn how to add bookmark items to a PDF document in Java using Apache PDFBox library. The post also show how to add bookmarks for new PDF document and existing PDF file.

Apache PDFBox Adding Metadata to PDF Document in Java

This toturial will show you how to adding metadata information such as title, creation date, modification date, author, creator tool, producer keywords etc. and custom properties to a new PDF document or the existing PDF file in Java using Apache PDFBox library.

Insert Image to PDF Document in Java using Apache PDFBox

In this tutorial we will learn how to create a PDF document using Apache PDFBox libary in Java and then insert an image to a PDF document page.