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Java base64 decode12/27/2023 UnsupportedEncodingException import java. The decoder ignores all line separators and other characters not found in the basic base64 alphabet. ![]() Each line (except the last line) is separated from the next line via a carriage return (\r) followed by a linefeed (\n). The encoded output is organized into lines of no more than 76 characters. MIME enforces a limit on line length of Base64 encoded data. MIME: The MIME variant uses the Basic Base64 alphabet ( A-Za-z0-9+/). The decoder rejects data that contains characters outside A-Za-z0-9-_. URL and Filename Safe: It is same as the Basic Base64 encoding except that + is replaced by - and / is replaced by _ to make the output URL and filename safe. ![]() The decoder rejects data that contains characters outside this set. These Base64 data can be encoded or decoded based on the user’s requirements and can be done with the help of certain methods. This class provides several methods for decoding Base64 to byte data. In Java Base64 Decode, Base64 is an encoding scheme in a binary-to-text format that denotes binary data, which is in the form of printable ASCII string format by translating into radix 64 depictions. The algorithm converts the input to a set of characters containing A-Z, a-z, 0-9, + and /. Since Java 1.8 developers can use the Base64.Decoder class to decode Base64 values. Basic: This is the standard Base64 encoding defined in the RFC 4648.This class supports three types of Base64 encoding such as. ![]() The Base64 class is part of java.util class that provides static methods for the Base64 encoding and decoding scheme. The specification for 64 MIME decoder says: All line separators or other characters not found in the base64 alphabet table are ignored in. Uses 'The Base64 Alphabet' as specified in Table 1 of RFC 4648 and RFC 2045 for encoding and decoding. The implementation of this class supports the following types of Base64 as specified in RFC 4648 and RFC 2045. The Base64 class was introduced in Java 8. This class consists exclusively of static methods for obtaining encoders and decoders for the Base64 encoding scheme. Java 8’s Base64 API contains implementations for all the Base64 encoding and decoding variants described in the official RFC 4648.įollowing variants of Base64 encoding and decoding is supported - Here are the examples to encode the plain text to Base64 and decode the plain text from Base64 using Java. In this article, you’ll learn how to Base64 decode any Base64 encoded text back to binary data.
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