Package Summary Overview Summary

### class:URLDecoder [NONE]
public class URLDecoder extends Object Utility class for HTML form decoding. This class contains static methods for decoding a String from the `application/x-www-form-urlencoded` MIME format. The conversion process is the reverse of that used by the URLEncoder class. It is assumed that all characters in the encoded string are one of the following: "`a`" through "`z`", "`A`" through "`Z`", "`0`" through "`9`", and "`-`", "`_`", "`.`", and "`*`". The character "`%`" is allowed but is interpreted as the start of a special escaped sequence. The following rules are applied in the conversion: The alphanumeric characters "`a`" through "`z`", "`A`" through "`Z`" and "`0`" through "`9`" remain the same. The special characters "`.`", "`-`", "`*`", and "`_`" remain the same. The plus sign "`+`" is converted into a space character " " . A sequence of the form "`%xy`" will be treated as representing a byte where xy is the two-digit hexadecimal representation of the 8 bits. Then, all substrings that contain one or more of these byte sequences consecutively will be replaced by the character(s) whose encoding would result in those consecutive bytes. The encoding scheme used to decode these characters may be specified, or if unspecified, the default charset will be used. There are two possible ways in which this decoder could deal with illegal strings. It could either leave illegal characters alone or it could throw an `IllegalArgumentException`. Which approach the decoder takes is left to the implementation. Since: 1.2 See Also: `Charset.defaultCharset()`

### method:decode(java.lang.String) [NONE]
### decode @Deprecated public static String decode (String s) Deprecated. The resulting string may vary depending on the default charset. Instead, use the decode(String,String) method to specify the encoding. Decodes a `x-www-form-urlencoded` string. The default charset is used to determine what characters are represented by any consecutive sequences of the form "`%xy`". Parameters: `s` - the `String` to decode Returns: the newly decoded `String`

### method:decode(java.lang.String,java.lang.String) [NONE]
### decode public static String decode (String s, String enc) throws UnsupportedEncodingException Decodes an `application/x-www-form-urlencoded` string using a specific encoding scheme. This method behaves the same as decode(java.lang.String,java.nio.charset.Charset) except that it will look up the charset using the given encoding name. Implementation Note: This implementation will throw an `IllegalArgumentException` when illegal strings are encountered. Parameters: `s` - the `String` to decode `enc` - The name of a supported character encoding . Returns: the newly decoded `String` Throws: `UnsupportedEncodingException` - If character encoding needs to be consulted, but named character encoding is not supported Since: 1.4 See Also: `URLEncoder.encode(java.lang.String, java.lang.String)`

### method:decode(java.lang.String,java.nio.charset.Charset) [NONE]
### decode public static String decode (String s, Charset charset) Decodes an `application/x-www-form-urlencoded` string using a specific Charset. The supplied charset is used to determine what characters are represented by any consecutive sequences of the form "`%xy`". Note: The World Wide Web Consortium Recommendation states that UTF-8 should be used. Not doing so may introduce incompatibilities. Implementation Note: This implementation will throw an `IllegalArgumentException` when illegal strings are encountered. Parameters: `s` - the `String` to decode `charset` - the given charset Returns: the newly decoded `String` Throws: `NullPointerException` - if `s` or `charset` is `null` `IllegalArgumentException` - if the implementation encounters illegal characters Since: 10 See Also: `URLEncoder.encode(java.lang.String, Charset)`