Java Merge Example

Text files (.txt)13 are widely used for data storage and processing. Frequently, developers need to merge several text files into one to simplify downstream processing. This guide demonstrates how to achieve that using Conholdate.Total for Java, a powerful text file joiner API.

Step 1: Setting up the Development Environment

Make sure you have the following tools installed:

  • Java Development Kit (JDK) – version 8 or higher.
  • Your preferred IDE (Eclipse, IntelliJ IDEA, or NetBeans).

Step 2: Obtaining Conholdate.Total for Java

Conholdate.Total for Java supplies a complete set of file‑format APIs, including the text file joiner. Add the library to your Maven project with the snippet below.

<repository>
	<id>ConholdateJavaAPI</id>
	<name>Conholdate Java API</name>
	<url>https://releases.conholdate.com/java/repo</url>
</repository>        
<dependency>
	<groupId>com.conholdate</groupId>
	<artifactId>conholdate-total</artifactId>
	<version>23.6</version>
	<type>pom</type>
</dependency>

After updating pom.xml, run the Maven commands to download the dependencies.

mvn clean    
mvn install -U

For other Java frameworks, explore the releases at releases.conholdate.com.

Get a Free License

Download a free temporary license to evaluate the library without usage limits.

Step 3: Creating a New Java Project

Open your IDE, create a new Java project, assign a descriptive name (e.g., TextFileMerger), and configure the project to use the installed JDK.

Step 4: Writing the Code

The following example shows how to merge several .txt files into a single output file using Conholdate.Total for Java.

Steps to Merge Text Files into One using Java

  1. Instantiate a Merger object with the path of the first source file.
  2. Call the join method for each additional file you want to combine.
  3. Use the save method to write the merged content to a destination file.

Sample Code

// Load the source TXT file
Merger merger = new Merger("c:\\sample1.txt");

// Add another TXT file to merge
merger.join("c:\\sample2.txt");

// Merge TXT files and save result
merger.save("c:\\merged.txt");

Step 5: Running the Program

Compile the Java class and execute it. Ensure that sample1.txt and sample2.txt are located in the project directory or provide absolute paths. Upon successful execution, the console will output “Text files combined successfully.”

Step 6: Verifying the Result

Navigate to the project folder, open merged.txt, and confirm that the contents of all source files appear in the correct order.

Conclusion

Conholdate.Total for Java provides a straightforward, high‑performance solution for merging text files. By following this tutorial, you can quickly combine multiple .txt documents, reduce manual file handling, and improve overall productivity. Give the library a try and experience seamless text file merging in your Java applications.

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