Starting Out with Java: From Control Structures through Objects (6th Edition)
Starting Out with Java: From Control Structures through Objects (6th Edition)
6th Edition
ISBN: 9780133957051
Author: Tony Gaddis
Publisher: PEARSON
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Chapter 9.6, Problem 9.30CP
Program Plan Intro

Tokenizing Strings:

  • The tokenizing of a string denotes a process of dividing a string into its components termed as tokens.
  • The “split” method of “String” class could be used to tokenize strings.
  • The character that would separate tokens is termed as “delimiter”.
  • The argument passed to “split” method denotes a regular expression.
  • A regular expression is used to search for patterns in strings, files and other texts.
  • To prevent leading or trailing whitespace characters in tokens, the string is been trimmed.
  • The “trim” method of “String” class is been used for trimming purposes.

Wrapper class:

  • The wrapper class is been provided by Java API for numeric data types.
  • These classes contain methods that perform useful operations.
  • It involves primitive numeric values.
  • The static “toString” method converts to a string from a number.
    • The method that accepts number as its argument.
    • It returns a number’s string representation.
    • The “toBinaryString”, “toHexString”, and “toOctalString” accepts integer as argument.
      • It returns string representation of number converted into binary, hexadecimal and octal.
    • The “MAX_VALUE” and “MIN_VALUE” stores maximum and minimum value for a specific data type.
  • The “Autoboxing” denotes a java process for automatically boxing up a value inside an object.
  • The “Unboxing” denotes a reverse process of boxing; it converts a wrapper class object into a primitive type.

Program Plan Intro

Tokenizing Strings:

  • The tokenizing of a string denotes a process of breaking a string down into its components termed as tokens.
  • The “split” method of “String” class could be used to tokenize strings.
  • The character that separates tokens is termed as “delimiter”.
  • The argument passed to “split” method denotes a regular expression.
  • A regular expression is used to search for patterns in strings, files and other texts.
  • To prevent leading or trailing whitespace characters in tokens, the string is been trimmed.
  • The “trim” method of “String” class is been used for trimming purposes.

Wrapper class:

  • The wrapper class is been provided by Java API for numeric data types.
  • These classes contain methods that perform useful operations.
  • It involves primitive numeric values.
  • The static “toString” method converts to a string from a number.
    • The method that accepts number as its argument.
    • It returns a number’s string representation.
    • The “toBinaryString”, “toHexString”, and “toOctalString” accepts integer as argument.
      • It returns string representation of number converted into binary, hexadecimal and octal.
    • The “MAX_VALUE” and “MIN_VALUE” stores maximum and minimum value for a specific data type.
  • The “Autoboxing” denotes a java process for automatically boxing up a value inside an object.
  • The “Unboxing” denotes a reverse process of boxing; it converts a wrapper class object into a primitive type.

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