Once the library is linked, you can use the Base64 class as follows:
: Include it in the classpath during compilation and execution: javac -cp ".;commons-codec-1.22.0.jar" YourApp.java Quick Code Example download jar org.apache.commons.codec.binary.base64
: For direct JAR downloads or manual project integration, use the Maven Central artifact page or the MVNRepository link. How to Install and Use Once the library is linked, you can use
: Go to Project Properties > Libraries/Build Path > Add External JARs, and select the file. Add the following to your configuration:
To fix "cannot find symbol" errors related to org.apache.commons.codec.binary.Base64 , you must add the JAR to your project's . 1. Automatic Dependency Management (Recommended)
import org.apache.commons.codec.binary.Base64; public class Main { public static void main(String[] args) { String original = "Hello World"; // Encoding byte[] encodedBytes = Base64.encodeBase64(original.getBytes()); System.out.println("Encoded: " + new String(encodedBytes)); // Decoding byte[] decodedBytes = Base64.decodeBase64(encodedBytes); System.out.println("Decoded: " + new String(decodedBytes)); } } Use code with caution.
If you use a build tool like Maven or Gradle, you do not need to download the JAR manually. Add the following to your configuration: