Help with searching and replacing

Question

This kind of carries on from the previous topic i posted, but that one came to a bit of a dead end. Here is the code that i have so far:
import java.io.*;
import java.util.*;
class SearchReplaceApp
     public static InputStreamReader input =
     new InputStreamReader(System.in);
     public static BufferedReader keyboardInput =
     new BufferedReader(input);
     public static void main(String[] args) throws IOException
     FileReader file = new FileReader(args[0]);
     BufferedReader MyFile = new BufferedReader(file);
          StringTokenizer TokenizeMe;
          int NumberOfTokens = 0;
          int NumberOfWords = 0;
     TokenizeMe = new StringTokenizer(MyFile.readLine());
     NumberOfTokens = TokenizeMe.countTokens();
     while (NumberOfTokens != 0)
          for (int WordsInLine=1; WordsInLine<=NumberOfTokens;
                    WordsInLine++)
               System.out.print(TokenizeMe.nextToken()+" ");
          System.out.println();
          NumberOfWords += NumberOfTokens;
          String line = MyFile.readLine();
          if (line==null) break;
          TokenizeMe = new StringTokenizer(line);
          NumberOfTokens = TokenizeMe.countTokens();
          String findWord;
          String replaceWord;
          System.out.println ("Search for?:");
          findWord = keyboardInput.readLine();
          System.out.println("Replace With?:");
          replaceWord = keyboardInput.readLine();
          if (line.equals(findWord)) {               
          line = replaceWord;
     System.out.println("\nThis file contains " + NumberOfWords + " words");
     MyFile.close();
     }The problem is that it asks to search for a word after it has read each line of the file to the screen, instead of just asking when it has read in the whole file, which is what i want it to do. can anyone help me with this?
I think the problem lies in the part :
          String findWord;
          String replaceWord;
          System.out.println ("Search for?:");
          findWord = keyboardInput.readLine();
          System.out.println("Replace With?:");
          replaceWord = keyboardInput.readLine();
          if (line.equals(findWord)) {               
          line = replaceWord;
I would also like the program to display the dedited text after the replace has been completed e.g.
java SearchReplaceApp test.txt
This is a test
This is a test
This is a Test
This is a Test
This file contains 16 words
Search for?: test
Replace with?: Test
This is a Test
This is a Test
This is a Test
This is a Test
Search for?:
etc............................
Any help at all would be appreaciated as im getting a bit frustated with this program and also my own lack of knowledge.
Thanks
Max

Answer 1

Hi,
sorri for that code which sent. here's is the correct code
import java.io.*;
import java.util.*;
class SearchReplaceApp
public static InputStreamReader input = new InputStreamReader(System.in);
public static BufferedReader keyboardInput = new BufferedReader(input);
public static void main(String[] args) throws IOException
FileReader file = new FileReader(args[0]);
BufferedReader MyFile = new BufferedReader(file);
StringTokenizer TokenizeMe;
int NumberOfTokens = 0;
int NumberOfWords = 0;
String line = MyFile.readLine();
String completeText = "";
Vector strVec = new Vector();
while(line!=null)
completeText+="\r\n";
StringTokenizer tokenizeLine = new StringTokenizer(line);
NumberOfWords+=tokenizeLine.countTokens();
completeText +=line;strVec.add(line);
line = MyFile.readLine();
MyFile.close();
System.out.println(completeText);
System.out.println("This file contains"+NumberOfWords+ "words");
String findWord="";
String replaceWord;
String resultStr = "\r\n";
for ( ;;)
System.out.println ("Search for?:");
System.out.println("Please enter quit for quit:");
findWord = keyboardInput.readLine();
if(findWord.equals("quit")) break;
//While findWord is not =null do.......
System.out.println("Replace With?:");
replaceWord = keyboardInput.readLine();
for(int i=0;i<strVec.size();i++)
String str = (String)strVec.get(i);
TokenizeMe = new StringTokenizer(str);
while ( TokenizeMe.hasMoreTokens())
String token = TokenizeMe.nextToken();
if (token.trim().equals(findWord.trim()))
token = replaceWord; resultStr+=" " +token;
else{resultStr+=" "+token;}}resultStr+="\r\n";
System.out.println("COMPLETE TEXT AFTER REPLACE IS "+resultStr);
//Save changes back to original file
String str = resultStr;
FileWriter newFile = new FileWriter(args[0]);
PrintWriter fw = new PrintWriter(newFile);
char[] ch = new char[str.length()];
str.getChars(0,str.length(),ch,0);
fw.write(ch);
fw.flush();
fw.close();
hope this solves your problem.
shyam