Class ScanfFormat
A scanf style format string is specified in the constructor. Once instantiated, objects of this class may be passed as arguments to the scan methods of the ScanfReader class.
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Field Summary
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Constructor Summary
ConstructorsConstructorDescriptionScanfFormat(String fmt) Deprecated.Constructs a ScanfFormat class from a format string. -
Method Summary
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Field Details
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type
public int typeDeprecated.
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Constructor Details
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ScanfFormat
Deprecated.Constructs a ScanfFormat class from a format string. The structure of the format string is described in the documentation for the set method.- Parameters:
fmt- Format string- Throws:
IllegalArgumentException- Malformed format string- See Also:
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Method Details
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set
Deprecated.Sets the contents of the object according to the information provided in the format string.The format string describes what input to expect for a ScanfReader, and its form closely matches that for the C scanf methodName, expect that multiple conversions cannot be specified.
A conversion sequence is introduced by the '%' character; valid conversion sequences are described below. Other characters may appear in the format string. A white space character requests a match of any amount of white space, including none. Other characters request an exact match of themselves. The character sequence "%%" requests a match of the '%' character.
The '%' character introducing a conversion sequence may be followed by an unsigned decimal integer indicating the field width, which is the maximum number of characters used for a particular conversion. Field widths must be greater than 0.
The optional field width is followed by one of the following conversion characters, which specifies the primitive type to be scanned:
- f
- floating point (double).
- d
- signed decimal integer (long or int).
- o
- unsigned octal integer (long or int), formed from the digits [0-7].
- x
- unsigned hex integer (long or int), formed from the characters [0-9a-fA-F].
- i
- signed integer (long or int). If the digit sequence begins with "0x", then a hex value is scanned; if the digit sequence begins with "0", then an octal value is scanned; and otherwise a decimal value is scanned.
- c
- character (char).
- [
- matches any character in the sequence specified between the '[' and a closing ']', unless the first character in the sequence is a '^', in which case any character is matched which does not appear in the following sequence. To include ']' in the sequence, it should be placed immediately after the initial '[' or '[^'. The character '-' is also special; if it appears between any two characters in the sequence, then all characters within the numeric range specified by the two characters are implicitly incorported into the sequence. Consecutive '-' characters are not permitted in the sequence. A lone '-' character may be specified by placing it at the end of the sequence, before the closing ']'.
- s
- matches a string delimited by white space.
- Parameters:
fmt- Format string- Throws:
IllegalArgumentException- Malformed format string- See Also:
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