Computer Applications
Describe wrapper class methods available in Java to parse string values to their numeric equivalents.
Answer
The wrapper class methods available in Java to parse string values to their numeric equivalents are described below:
parseInt(string) — It is a part of wrapper class Integer. It parses the string argument as a signed integer. The characters in the string must be digits or digits separated with a decimal. The first character may be a minus sign (-) to indicate a negative value or a plus sign (+) to indicate a positive value.
Syntax:int parseInt(String s)parseLong(string) — It is a part of wrapper class Long. It parses the string argument as a signed long. The characters in the string must be digits or digits separated with a decimal. The first character may be a minus sign (-) to indicate a negative value or a plus sign (+) to indicate a positive value.
Syntax:long parseLong(String s)parseFloat(string) — It is a part of wrapper class Float. It returns a float value represented by the specified string.
Syntax:float parseFloat(String s)parseDouble(string) — It is a part of wrapper class Double. It returns a double value represented by the specified string.
Syntax:double parseDouble(String s)