Confuse BufferedReader type with String

[nani aman]

Could anybody explain to me why i have the incompatible type error when compile this program. inLine Variable is in String so i thought it would ok if i use inLine to send as a string to CookiesPersistant(inLine). But it perform wrror. Why?

private void showFile() {
    // Use a BufferedReader to read text from the file
    BufferedReader infile = null;
  
    // Get file name from the text field
    String filename = jtfFilename.getText().trim();
  
    String inLine;
int ConfidentEl=0;
Boolean CP;
 
    try {
      // Create a buffered stream
      infile = new BufferedReader(new FileReader(filename));
  
      // Read a line and append the line to the text area
      while ((inLine = infile.readLine()) != null) {
         
        if(CookiesPersistant(inLine))ConfidentEl++;
        System.out.print("Confident Element is "+ ConfidentEl);
      }
 }  
  //detect Cookies Persistant element
  static Boolean CookiesPersistant(String str){
  
  int CP = str.indexOf("setcookie,\" \", ");
  
  if(CP>=0)
  return true;
  else
  return false;
  }
 

Please help me..i blurr how to solve this. I am new in Java.

[ edited to preserve formatting using the [code] and [/code] UBB tags -ds ]
[ September 22, 2004: Message edited by: Dirk Schreckmann ]

[Michael Dunn]

change this line
static Boolean CookiesPersistant(String str)

to this
static boolean CookiesPersistant(String str)

[Dirk Schreckmann]

Welcome to JavaRanch, nani aman!

When posting code, please be sure to surround the code with the [code] and [/code] UBB Tags. This will help to preserve the formatting of the code, thus making it easier to read and understand.

Concerning Michael's suggestion, depending on the version of Java you're using, you might need to do what he suggested. If you're using Java 2 v5, then it's not a concern. If you're using some earlier version of Java, then it is a concern.

If you're not sure, to determine which version you're using, run the following command.

javac -J-version

If you see version information for something less than 1.5, then using a Boolean where a boolean is required is a problem. You could go with Michael's suggestion, or make a call to the booleanValue() method of your Boolean.

The code you posted is rather incomplete. It doesn't compile, and when trying to compile it, it doesn't produce the error message you initially posted about. Fixing the code so that it does compile (by adding some brackets, a catch block, some imports, and a variable declaration) - well then it compiles and the error message you initially posted about remains unexperience by me.

Perhaps you could post a more complete code example.
[ September 22, 2004: Message edited by: Dirk Schreckmann ]

[nani aman]

Thanks a lot. Its help.

[Dirk Schreckmann]

Did you figure something out? What was it?

[nani aman]

I chage Boolean with boolean and my codes compile. Boolean and boolean is 2 different thing right. But i still can't figure out what the different.

[Dirk Schreckmann]

boolean is a primitive data type. Things of this type are just data - i.e. values.

Boolean is an object data type. Things that are objects contain data (like primitives and other objects) and have behaviors (as defined by their methods).

Rather than have me try to repeat what any good introductory Java programming material should cover, let me direct you towards some good free resources:

Sun's Java Tutorial

Introduction to Computer Science using Java by Bradley Kjell

Introduction to Programming Using Java by David J. Eck

Dick Baldwin's Java Programming Tutorials

Interactive Programming In Java by Lynn Andrea Stein

Bruce Eckel's Thinking In Java

JavaRanch's own Campfire Stories

Allen B. Downey's How To Think Like A Computer Scientist