Encoding as Base64 in Java

Question

I need to encode some data in the Base64 encoding in Java. How do I do that? What is the name of the class that provides a Base64 encoder?

---

I tried to use the <

Answer 1

In Java 8 it can be done as: Base64.getEncoder().encodeToString(string.getBytes(StandardCharsets.UTF_8))

Here is a short, self-contained complete example:

import java.nio.charset.StandardCharsets;
import java.util.Base64;

public class Temp {
    public static void main(String... args) throws Exception {
        final String s = "old crow medicine show";
        final byte[] authBytes = s.getBytes(StandardCharsets.UTF_8);
        final String encoded = Base64.getEncoder().encodeToString(authBytes);
        System.out.println(s + " => " + encoded);
    }
}

Output:

old crow medicine show => b2xkIGNyb3cgbWVkaWNpbmUgc2hvdw==