[bankkab]

fconn = (FileConnection) Connector.open("file:///D:/IP.txt", Connector.READ);

in "file:///D:/IP.txt" have String "LocalHost"

How to read string and show message "LocalHost" in my app

please,

[Dougsg38p]

Call FileConnection.openInputStream() to obtain a stream, then read the stream.

[berryapp]

Like in the earlier reply, once you have the connection, you could get the InputStream. You can then use the IOUtilities class provided by RIM to read the whole content into an array.

InputStream in = fconn.openInputStream();
byte[] data = IOUtilities.streamToBytes( in );

You could then set the data in a StringBuffer,

StringBuffer sb = new StringBuffer(data.length);
sb.append(data);

For small data file this would be an easier way to go.

[berryapp]

Originally Posted by berryapp

Like in the earlier reply, once you have the connection, you could get the InputStream. You can then use the IOUtilities class provided by RIM to read the whole content into an array.

InputStream in = fconn.openInputStream();
byte[] data = IOUtilities.streamToBytes( in );

You could then set the data in a String,

String = new String(data.); // need to use String

For small data file this would be an easier way to go.

String = new String(data.); // need to use String

[bankkab]

Originally Posted by berryapp

String = new String(data.); // need to use String

try {
fconn = (FileConnection) Connector.open("file:///D:/IP.txt", Connector.READ);
//is = fconn.openDataInputStream();
// data = IOUtilities.streamToBytes(is);
InputStream in = fconn.openInputStream();
byte[] data = IOUtilities.streamToBytes(in);
String sss = new String(data);
oxi = new LabelField(sss);
}



catch (IOException e)
{
System.out.println(e.getMessage());
}
add(oxi);


Build Complete but....In my App is Error !

Helpme please

[berryapp]

Originally Posted by bankkab

try {
fconn = (FileConnection) Connector.open("file:///D:/IP.txt", Connector.READ);
//is = fconn.openDataInputStream();
// data = IOUtilities.streamToBytes(is);
InputStream in = fconn.openInputStream();
byte[] data = IOUtilities.streamToBytes(in);
String sss = new String(data);
oxi = new LabelField(sss);
}



catch (IOException e)
{
System.out.println(e.getMessage());
}
add(oxi);


Build Complete but....In my App is Error !

Helpme please

You need to provide little bit more information. I believe you are saying that you can build fine, but you get error while running the app? What error message you exactly see. You could run your app in debug mode and add break point at certain line based on the error that you see.

[bankkab]

it shows debug

source code is not available
source code is not available
source code is not available
source code is not available
source code is not available

File system error (1003)

when i click in my app

[berryapp]

Originally Posted by bankkab

it shows debug

source code is not available
source code is not available
source code is not available
source code is not available
source code is not available

File system error (1003)

when i click in my app

Did you put break point at some lines within the class file that you created? The debugger should be able to find the source from your class

[bankkab]

Can you Give me a sample code for

read string in my Text file please

[berryapp]

Originally Posted by bankkab

Can you Give me a sample code for

read string in my Text file please

Here is a method. After you start the simulator, first save a file temp.txt making sure that there is a file by that name and appropriate location.
---------------------------------------------------------
public String readFile() {
FileConnection fc = null;
String fileContent = "";
try {
fc = (FileConnection)Connector.open("file:///store/home/user/temp.txt");
if ( (fc==null) || !fc.exists()){
return "File does not exist";
}

InputStream in = fc.openInputStream();
byte[] data = IOUtilities.streamToBytes( in );
fileContent = new String(data);

in.close();
fc.close();
} catch (Throwable t) {

}
return fileContent;
}

[bankkab]

here this code

class Connect extends MainScreen {



Connect() {


FileConnection fc = null;
String fileContent = "";
try {
fc = (FileConnection)Connector.open("file:///D:/IP.txt");
if ( (fc==null) || !fc.exists()){
return "File does not exist";
}

InputStream in = fc.openInputStream();
byte[] data = IOUtilities.streamToBytes(in);
fileContent = new String(data);

in.close();
fc.close();
} catch (Throwable t) {

}
return fileContent;
}

}

it error " cannot return a value from method whose result type is void "

where is a void i don't declare a void function

[berryapp]

Originally Posted by bankkab

here this code

class Connect extends MainScreen {



Connect() {


FileConnection fc = null;
String fileContent = "";
try {
fc = (FileConnection)Connector.open("file:///D:/IP.txt");
if ( (fc==null) || !fc.exists()){
return "File does not exist";
}

InputStream in = fc.openInputStream();
byte[] data = IOUtilities.streamToBytes(in);
fileContent = new String(data);

in.close();
fc.close();
} catch (Throwable t) {

}
return fileContent;
}

}

it error " cannot return a value from method whose result type is void "

where is a void i don't declare a void function

Since your method returns String, so you need to have the method declaration accordingly, i.e.,
String Connect() { //instead of Connect() {

[hrbuckley]

Well, actually, constructors can't return a value at all.

[berryapp]

Originally Posted by hrbuckley

Well, actually, constructors can't return a value at all.

sorry! I didn't notice that. My original suggested method (public String readFile()) was not a constructor, so that was in my mind while I was typing.

[berryapp]

Originally Posted by berryapp

Since your method returns String, so you need to have the method declaration accordingly, i.e.,
String Connect() { //instead of Connect() {

Since you placed the code within a constructor, remove the return statement.

[bankkab]

In netbean i'm use Class Scanner for read string

but In Blackberry Jde not have class Scanner

[berryapp]

Originally Posted by bankkab

In netbean i'm use Class Scanner for read string

but In Blackberry Jde not have class Scanner

Please note that, you can't use many of the APIs that are available in the later version of Java. I think anything after jdk 1.3 is a NO NO!