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Java_8 New - Base64

With Java 8, Base64 has finally got its due in java. Java 8 now has inbuilt encoder and decoder for Base64 encoding. In java 8, we can use three types of Base64 encoding.

Simple - Output is mapped to set of characters lying in A-Za-z0-9+/. Encoder does not add any line feed in output and decoder rejects any character other than A-Za-z0-9+/.
URL - Output is mapped to set of characters lying in A-Za-z0-9+_. Output is URL and filename safe.
MIME - Output is mapped to MIME friendly format. Output is represented in lines of no more than 76 characters each and uses a carriage return '\r' followed by a linefeed '\n' as the line separator. No line separator is present to the end of the encoded output.

Nested Classes

S.N	Nested class & Description
1	static class Base64.Decoder This class implements a decoder for decoding byte data using the Base64 encoding scheme as specified in RFC 4648 and RFC 2045.
2	static class Base64.Encoder This class implements an encoder for encoding byte data using the Base64 encoding scheme as specified in RFC 4648 and RFC 2045.

Methods

S.N.	Method Name & Description
1	static Base64.Decoder getDecoder() Returns a Base64.Decoder that decodes using the Basic type base64 encoding scheme.
2	static Base64.Encoder getEncoder() Returns a Base64.Encoder that encodes using the Basic type base64 encoding scheme.
3	static Base64.Decoder getMimeDecoder() Returns a Base64.Decoder that decodes using the MIME type base64 decoding scheme.
4	static Base64.Encoder getMimeEncoder() Returns a Base64.Encoder that encodes using the MIME type base64 encoding scheme.
5	static Base64.Encoder getMimeEncoder(int lineLength, byte[] lineSeparator) Returns a Base64.Encoder that encodes using the MIME type base64 encoding scheme with specified line length and line separators.
6	static Base64.Decoder getUrlDecoder() Returns a Base64.Decoder that decodes using the URL and Filename safe type base64 encoding scheme.
7	static Base64.Encoder getUrlEncoder() Returns a Base64.Encoder that encodes using the URL and Filename safe type base64 encoding scheme

Methods inherited

This class inherits methods from the following classes:

java.lang.Object

Base64 Example

Create the following java program using any editor of your choice in say C:/> JAVA

Java8Tester.java

import java.util.Base64;
import java.util.UUID;
import java.io.UnsupportedEncodingException;

publicclassHelloWorld{

publicstaticvoid main(String args[]){
try{
// Encode using basic encoder
String base64encodedString =Base64.getEncoder().encodeToString("TutorialsPoint?java8".getBytes("utf-8"));
System.out.println("Base64 Encoded String (Basic) :"+ base64encodedString);

// Decode
byte[] base64decodedBytes =Base64.getDecoder().decode(base64encodedString);
System.out.println("Original String: "+newString(base64decodedBytes,"utf-8"));

base64encodedString =Base64.getUrlEncoder().encodeToString("TutorialsPoint?java8".getBytes("utf-8"));
System.out.println("Base64 Encoded String (URL) :"+ base64encodedString);

StringBuilder stringBuilder =newStringBuilder();
for(int i =0; i <10;++i){
stringBuilder.append(UUID.randomUUID().toString());
}

byte[] mimeBytes = stringBuilder.toString().getBytes("utf-8");
String mimeEncodedString =Base64.getMimeEncoder().encodeToString(mimeBytes);
System.out.println("Base64 Encoded String (MIME) :"+mimeEncodedString);
}catch(UnsupportedEncodingException e){
System.out.println("Error :"+e.getMessage());
}
}
}

Verify the result

Compile the class using javac compiler as follows

C:\JAVA>javac Java8Tester.java

Now run the Java8Tester to see the result

C:\JAVA>java Java8Tester

See the result.

Base64 Encoded String (Basic) :VHV0b3JpYWxzUG9pbnQ/amF2YTg=
Original String: TutorialsPoint?java8
Base64 Encoded String (URL) :VHV0b3JpYWxzUG9pbnQ_amF2YTg=
Base64 Encoded String (MIME) :ZWJjY2YzZWUtYmUwZC00Yjg1LTlkYjUtNWUyMzBlNWI
4ZGQ4ZjE1NGJmMjEtNTdkNi00YzM1LTg4
MzYtNDZlYzNhZDM2NTdkZmQzY2RiNzMtMTU1OC00ZjBmLWFmZGQtM2YyZWU3MDYzZjQwNzVhY
WQ0
ODctZWEyZS00YzM2LWEyZmUtOGVkMmNjMGNmZGM3MTg5YWUyZGQtMzg4MS00M2NkLWI2NDEtZ
jNh
Zjk2OGIxZDU2YzkzODZlYTUtNjljNC00ZmIyLTkzYTQtMzVlOTFlNjdlY2E0MDcwNWExMWItM
mE4
Yy00OTljLTg2NmItMjE3ZTZmMmIyY2NiNzI2MjAwZWQtMjI0NC00YzJhLWJiMGItOTczMDJkM
zIx
NGFkY2QyZmVhODItNmUyOS00MWNjLWFlODItNzdmNzRhYmQ4NGU5ZGQ3ZjY3NzktZjgwYi00M
zlk
LTlmNDgtOTNlNTIwYzIzZDcy

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Java_8 New - Base64