* means to import all classes.  

Examples:  

import java.awt.   *   import blue.cards.   *   import white.words.   *

 

Note:  

Off of the CS1 home page you will find documentation for the ``blue'' packages.  

Write an operator style method called iota which takes one positive integer as its sole parameter and returns the array of integers containing 1,  2,  3,  ...   ,  n -- where n is the parameter.  

Example:  

iota (5)   iota (1)   iota (9)

 

Solution:  

static private int [] iota (int n)   {       int a [] = new int [n];       for (int x = 0;  x < = n - 1;  x = x + 1)       {         a [x] = x + 1;       }       return a;   }

 

Write an operator style method which copies (makes a copy of) an array of character strings.  

static private String [] copy (String [] s)   {       String c [] = new String [s.length];       for (int i = 0;  i < s.length;  i + +)       {         c [i] = s [i];       }       return c;   }

 

Define a class called Word which can be used to store Words words in terms of:

• the word
  
• the syllables of the word
  
• the syllable number which is generally accented
  

Java code for the class definition  

public class Word   {   / /instance variables.         private String word;         private String [] syllables;   / /Constructors.       (This constructor will create a word       by reading information from the standard       input stream.   It will read:   the words,  the       number of syllables,  and the syllables.   )   public Word ()   {         word = IO.readString ();         int nrSyllables = IO.read_int ();         syllables = new String [nrSyllables];         for (int x = 0;  x < nrSyllables;  x + +)         {           syllables [x] = IO.readString ();         }   }     / /Methods.       Compute the length of the word.   public int length ()   {         return word.length ();   }     / /Compute the number of syllables       in the word.   public int nrSyllables ()   {         return syllables.length;   }   }

 

Define a class which represents a named dictionary.   There will be two properties:

• the name (String)
  
• the words (Word [])
  

public class Dictionary   {   / /Instance variables.       private String name;       provate Word [] words;     / /Constructor # 1:   Create an       empty dictionary.   public Dictionary (String theName   {       name = theName;       words = new Word [0];   }     / /Constructor # 2:   Create a dictionary       by reading elements (word entries)       from the standard input file which begins       with an integer indicating the number of       word entries.   public Dictionary (String theName)   {       name = theName;       int nrWords = IO.read_int ();       words = new Words [nrWords];       for (int i = 0;  i < nrWords;  i + +)       {         word [i] = new Word ();       }   }

 

Note:  

As things stand we cna only use one of these two constructors.