Class Buggy

java.lang.Object

Buggy

public class Buggy
extends java.lang.Object

This class contains some bugs. Your job is to find them. This class will process Strings. It offers some basic, useful String methods (some of which mimic the String methods in the standard String class.)

Constructor Summary

Constructors

Constructor and Description
Buggy()

Method Summary

Methods

Modifier and Type	Method and Description
double	avgWordLength(java.lang.String s) Computes average word length in a string.
int	countWords(java.lang.String s) Counts the words in a String.
java.lang.String	reverseString(java.lang.String s) Reverses the characters in a String
java.util.ArrayList<java.lang.String>	splitString(java.lang.String s, java.lang.String d) Splits a String on a specified set of delimiters.
java.lang.String	toLower(java.lang.String s) Converts a string to all lower case.
java.lang.String	toUpper(java.lang.String s) Converts string to all upper case.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Buggy

public Buggy()

Method Detail

toUpper

public java.lang.String toUpper(java.lang.String s)

Converts string to all upper case. Does not change non-alphabetic characters

Parameters:

s - the String to convert to upper case

Returns:

s all in upper case

toLower

public java.lang.String toLower(java.lang.String s)

Converts a string to all lower case. Does not change non-alphabetic characters

Parameters:

s - the String to convert to lower case

Returns:

s all in lower case

countWords

public int countWords(java.lang.String s)

Counts the words in a String. This algorithm uses a fairly limited definition of a word. A 'word' is a string of characters separated from another string of characters by one or more occurrences of the following separators:

             Character       Name 

                .            period 
                ,            comma 
                -            hyphen 
                ;            semicolon 
                :            colon 
                ?            question mark 
               ' '           space
                !            exclamation point 
      

For simplicity in this exercise, no other characters are considered separators.

 Examples:    Number of words    String  
                     0           ""
                     1           "abc" 
                     2           "abc def"
                     2           "hokey-pokey"
                     2           "Justin            Bieber"
                     4           "(for String s1 : myStringList)"
     

Parameters:

s - the String

Returns:

the number of words in s

reverseString

public java.lang.String reverseString(java.lang.String s)

Reverses the characters in a String

Parameters:

s - the String to reverse

Returns:

s reversed

splitString

public java.util.ArrayList<java.lang.String> splitString(java.lang.String s,
                                                java.lang.String d)

Splits a String on a specified set of delimiters. Works like the String class method split() but returns ArrayList instead of String[] Multiple delimiters in a row count as a single delimiter.

avgWordLength

public double avgWordLength(java.lang.String s)

Computes average word length in a string. A 'word' is a string of characters separated from another string of characters by one or more occurrences of the following separators:

             Character       Name 

                .            period 
                ,            comma 
                -            hyphen 
                ;            semicolon 
                :            colon 
                ?            question mark 
               ' '           space
                !            exclamation point 
      

For simplicity in this exercise, no other characters are considered separators.

 Examples:    Number of words    String                              Average word length
                     1           "abc"                                        3.0
                     2           "abc def"                                    3.0
                     2           "hokey-pokey"                                5.0
                     2           "Justin            Bieber"                   6.0
                     4           "(for String s1 : myStringList)"             6.25
       

Parameters:

s - the String to convert to upper case

Returns:

the average word length of the words in s