Urgent help needed Please

[neilgriffiths]

Hi all,

Can someone please help me i am in a spot of bother, i need to get this little program going by monday morning and do not know how to do it, as everything i have tried hasn`t worked.

This program is suposed to take a small text file and count the numbers of odd /even words as well as display the words. The program compiles but doesn`t run and gives me an error message that I don`t understand. I have attached the text file I am supposed to use to test the program.
Could someone else please run it and see if they have any suggestions.....
Thanks again folks



import java.io.*;

public class EvenOddCount {

private static BufferedReader input;


public void main (String [] args) {
EvenOddCount count = new EvenOddCount();
count.countWords(input);
}

private EvenOddCount() {
input = openRead("C:\\TestFile.txt");
}

public BufferedReader openRead(String filename){
try{
BufferedReader input = new BufferedReader (new FileReader(filename));
} catch (FileNotFoundException e) {System.exit(0);}
return input;
}

public void countWords (BufferedReader input) {
StreamTokenizer test = new StreamTokenizer(input);
int evenCount = 0;
int oddCount = 0;
int charCount = 0;
try {
while (test.nextToken() != test.TT_EOF) {
switch (test.ttype) {
case StreamTokenizer.TT_WORD:
charCount += test.sval.length();
if (test.sval.length() % 2 == 0) {evenCount++;}
else {oddCount++;}
System.out.println(test.sval+ "[" + test.sval.length() + "]");
break;
}
}
} catch (IOException e) {System.exit(0);}
int totalWords = evenCount + oddCount;
System.out.println("There were " + totalWords + " words and " + charCount + " characters");
System.out.println("There were " + evenCount + " even words, and " + oddCount + " odd words");
}

}

[kamalakar]

Hi,

Try This.....


import java.io.*;

public class EvenOddCount {

private static BufferedReader input;

private EvenOddCount() {
input = openRead("C:\\TestFile.txt");
}

public BufferedReader openRead(String filename){
try{
/*
* Remove BufferReader
*
* BufferedReader input = new BufferedReader (new FileReader(filename));
*
*/

input = new BufferedReader (new FileReader(filename));

} catch (FileNotFoundException e) {
System.out.println("Exception Occured!!........");
System.exit(0);
}

return input;
}

public void countWords (BufferedReader input) {

StreamTokenizer test = new StreamTokenizer(input);
int evenCount = 0;
int oddCount = 0;
int charCount = 0;
try {
while (test.nextToken() != test.TT_EOF) {

switch (test.ttype) {
case StreamTokenizer.TT_WORD:
charCount += test.sval.length();
if (test.sval.length() % 2 == 0) {evenCount++;}
else {oddCount++;}
System.out.println(test.sval+ "[" + test.sval.length() + "]");
break;
}
}
} catch (IOException e) {System.exit(0);}

int totalWords = evenCount + oddCount;
System.out.println("There were " + totalWords + " words and " + charCount + " characters");
System.out.println("There were " + evenCount + " even words, and " + oddCount + " odd words");
}

public static void main (String [] args) {
EvenOddCount count = new EvenOddCount();
count.countWords(input);
}

}

[shivakatula]

Hai friend,
Here's your work done, Try stoping redeclaring the same variable which will lead you to null pointer exception.

import java.io.*;

public class EvenOddCount {

private static BufferedReader input;

private EvenOddCount() {
input = openRead("C:\\testfile.txt");
}

public static void main (String [] args) {
EvenOddCount count = new EvenOddCount();
count.countWords(input);
}


public BufferedReader openRead(String filename){
try{
input = new BufferedReader (new FileReader(filename));
} catch (FileNotFoundException e) {System.exit(0);}
return input;
}

public void countWords (BufferedReader input) {
StreamTokenizer test = new StreamTokenizer(input);
int evenCount = 0;
int oddCount = 0;
int charCount = 0;
try {
while (test.nextToken() != test.TT_EOF) {
switch (test.ttype) {
case StreamTokenizer.TT_WORD:
charCount += test.sval.length();
if (test.sval.length() % 2 == 0) {evenCount++;}
else {oddCount++;}
System.out.println(test.sval+ "[" + test.sval.length() + "]");
break;
}
}
} catch (IOException e) {System.exit(0);}
int totalWords = evenCount + oddCount;
System.out.println("There were " + totalWords + " words and " + charCount + " characters");
System.out.println("There were " + evenCount + " even words, and " + oddCount + " odd words");
}

}