October 1st, 2006, 01:16 AM
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Join Date: May 2006
Posts: 3
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Having errors with varibles
hey guys, ive been constantly strugglying to get my code working but have had no luck. i have 2 classes, ListDictionary.java & wordbase1.java which are both linked lists that have an inner node class. ListDictionary.java is an array of linked lists, which reads words in from a text file called dictionary.txt, where for the array every element of the array represents a letter of the alphabet, and contains a linked list of words in alphabetically order starting with that letter. The wordbase1.java is suppose to be a linked list containing all the words in the dictionary which is of 4 letters or less in length, in alphabetically order, and i seem to be getting errors with my array varible. My code is below, any help would be great!
Code:
public class wordbase1 extends ListDictionary
{
private wordbase head;
private ListDictionary insert;
public wordbase1(ListDictionary insert)
{
super();
this.insert = insert;
head = null;
}
public void insertDictionary()
{
insert.addToDictionary();
wordbase p = new wordbase(array[0].getWord());
for(int i = 0; i < 26; i++)
{
p.getWord() = array[i].getWord();
if( (array[i].getWord()).length() <= 4)
{
if(head == null)
{
head = p;
}
else if(head.word.compareTo(p.word) >=0)
{
p.next = head;
head = p;
}
else
{
wordbase node = head;
while((node.next != null) && ((node.next).word).compareTo(p.word) < 0)
{
node = node.next;
}
p.next = node.next;
node.next = p;
}
}
}
}
public class wordbase extends NodeDictionary
{
private int flag;
private wordbase next;
public wordbase(String word)
{
super(word);
flag = 0;
next = null;
}
public String getWord()
{
super.getWord();
}
}
}
Code:
import java.util.*;
import java.io.*;
public class ListDictionary
{
private NodeDictionary head;
private ListDictionary[] array;
public ListDictionary()
{
head = null;
array = new ListDictionary[26];
}
public NodeDictionary search(String word)
{
NodeDictionary p = head;
String dataAtPosition;
while(p != null)
{
dataAtPosition = p.word;
if( dataAtPosition.equals(word))
{
return p;
}
p = p.next;
}
return null;
}
public boolean retrieveWord(String word)
{
return (search(word) != null);
}
public void showList()
{
NodeDictionary p = head;
while(p !=null)
{
System.out.println(p.word);
p = p.next;
}
}
public ListDictionary[] getArray()
{
return array;
}
public void setArray(ListDictionary[] array)
{
this.array = array;
}
public void addToDictionary()
{
try
{
BufferedReader input = new BufferedReader(new FileReader("dictionary"));
String line = "";
char arrayLine; //is the words in dictionary.txt gonna be upper or lower case
while(line != null)
{
line = input.readLine();
arrayLine = (char)line.charAt(0);
switch(arrayLine)
{
case 'A':
case 'a':
array[0].insert(line);
break;
case 'B':
case 'b':
array[1].insert(line);
break;
case 'C':
case 'c':
array[2].insert(line);
break;
case 'D':
case 'd':
array[4].insert(line);
break;
case 'E':
case 'e':
array[5].insert(line);
break;
case 'F':
case 'f':
array[6].insert(line);
break;
case 'G':
case 'g':
array[7].insert(line);
break;
case 'H':
case 'h':
array[8].insert(line);
break;
case 'I':
case 'i':
array[9].insert(line);
break;
case 'K':
case 'k':
array[10].insert(line);
break;
case 'L':
case 'l':
array[11].insert(line);
break;
case 'M':
case 'm':
array[12].insert(line);
break;
case 'N':
case 'n':
array[13].insert(line);
break;
case 'O':
case 'o':
array[14].insert(line);
break;
case 'P':
case 'p':
array[15].insert(line);
break;
case 'Q':
case 'q':
array[16].insert(line);
break;
case 'R':
case 'r':
array[17].insert(line);
break;
case 'S':
case 's':
array[18].insert(line);
break;
case 'T':
case 't':
array[19].insert(line);
break;
case 'U':
case 'u':
array[20].insert(line);
break;
case 'V':
case 'v':
array[21].insert(line);
break;
case 'W':
case 'w':
array[22].insert(line);
break;
case 'X':
case 'x':
array[23].insert(line);
break;
case 'Y':
case 'y':
array[24].insert(line);
break;
case 'Z':
case 'z':
array[25].insert(line);
break;
default:
System.out.println("This word does not start with a alphabetically char");
break;
}
}
}
catch(FileNotFoundException e)
{
System.out.println("File opening problem");
}
catch(IOException e)
{
System.out.println("File reading problem");
}
}
public void insert(String word)
{
NodeDictionary p = new NodeDictionary(word);
if(head == null)
{
head = p;
}
else if( (head.word).compareTo(p.word) >= 0 )
{
p.next = head;
head = p;
}
else
{
NodeDictionary node = head;
while( (node.next != null) && ((node.next).word).compareTo(p.word) < 0 )
{
node = node.next;
}
p.next = node.next;
node.next = p;
}
}
public class NodeDictionary
{
protected String word;
private NodeDictionary next;
public NodeDictionary(String word)
{
this.word = word;
next = null;
}
public String getWord()
{
return word;
}
}
}
the errors im getting are...
Code:
wordbase1.java:27: cannot find symbol
symbol : method getWord()
location: class ListDictionary
wordbase p = new wordbase(array[0].getWord());
^
wordbase1.java:30: unexpected type
required: variable
found : value
p.getWord() = array[i].getWord();
^
wordbase1.java:30: cannot find symbol
symbol : method getWord()
location: class ListDictionary
p.getWord() = array[i].getWord();
^
wordbase1.java:31: cannot find symbol
symbol : method getWord()
location: class ListDictionary
if( (array[i].getWord()).length() <= 4)
^
4 errors
I have been trying to fix it for a while but no luck yet, any help would be great.
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