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certainly! url decoding is the process of converting a percent-encoded string back into its original form. this is often necessary when dealing with data sent via urls, as spaces and other special characters are encoded to ensure that they are transmitted correctly over the web.

what is url encoding and decoding?

**url encoding**: this is the process of converting characters into a format that can be transmitted over the internet. for example, spaces are encoded as `%20`, and characters that are not a part of the standard ascii set are also encoded.

**url decoding**: this is the reverse process, where encoded characters are converted back to their original representation.

java url decoding

in java, you can perform url decoding using the `java.net.urldecoder` class. this class provides a method named `decode()` that takes an encoded string and the character encoding as parameters and returns the decoded string.

syntax



`str`: the encoded string.
`charset`: the name of a supported character encoding (e.g., "utf-8").

example code

here’s a simple example that demonstrates how to url decode a given string in java.



explanation of the code

1. **imports**: we import `unsupportedencodingexception` and `urldecoder` from `java.net`.

2. **main method**:
we define an encoded url string that includes special characters encoded as per url encoding rules.
we use `urldecoder.decode()` to decode the string. we specify "utf-8" as the character encoding, which is a common choice for web applications.
we print both the encoded and decoded strings to the console.

3. **exception handling**: we handle `unsupportedencodingexception`, which might occur if the specified character encoding is not available.

running the code

to run the above example:

1. make sure you have java installed on your machine.
2. copy the code into a text file and save it with a `.java` extension, for example, `urldecodeexample.java`.
3. open a terminal ...

#python decode
#python decode url
#python decode ascii
#python decode jwt
#python decode unicode

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