I need to open and read a downloaded file using selenium and I'm not quite sure how to do it. I see answers that suggests to download the file in a selected location. Does my code really need to start from downloading the file to selected location or can it start directly after downloading?
After opening the file I must also read it. Can anyone give me an idea on how to do this? Thank you!
You can read file using following code :
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
public class ReadFileExample1 {
private static final String FILENAME = "E:\\test\\filename.txt";
public static void main(String[] args) {
BufferedReader br = null;
FileReader fr = null;
try {
fr = new FileReader(FILENAME);
br = new BufferedReader(fr);
String sCurrentLine;
br = new BufferedReader(new FileReader(FILENAME));
while ((sCurrentLine = br.readLine()) != null) {
System.out.println(sCurrentLine);
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (br != null)
br.close();
if (fr != null)
fr.close();
} catch (IOException ex) {
ex.printStackTrace();
}
}
}
}
Hope it will help you.
You can use this line of code to handel download a file from chrome and forefox browser.
public static File waitForDownloadToComplete(File downloadPath, String fileName) throws Exception {
boolean isFileFound = false;
int waitCounter = 0;
while (!isFileFound) {
logger.info("Waiting For Download To Complete....");
for (File tempFile : downloadPath.listFiles()) {
if (tempFile.getName().contains(fileName)) {
String tempEx = FilenameUtils.getExtension(tempFile.getName());
// crdownload - For Chrome, part - For Firefox
if (tempEx.equalsIgnoreCase("crdownload") || tempEx.equalsIgnoreCase("part")) {
Thread.sleep(1000);
} else {
isFileFound = true;
logger.info("Download To Completed....");
return tempFile;
}
}
}
Thread.sleep(1000);
waitCounter++;
if (waitCounter > 25) {
isFileFound = true;
}
}
throw new Exception("File Not Downloaded");
}
}
Related
My Java project is located at C:\eclipse\workspace\cgw
Is it possible to read a text file located on C:\CGW\conexao\conexao.txt
File file = new File("C:\CGW\conexao\conexao.txt");
You can read a file anywhere on your computer, here is an example using Java BufferedReader
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
public class ReadFileExample1 {
private static final String FILENAME = "E:\\test\\filename.txt";
public static void main(String[] args) {
BufferedReader br = null;
FileReader fr = null;
try {
//br = new BufferedReader(new FileReader(FILENAME));
fr = new FileReader(FILENAME);
br = new BufferedReader(fr);
String sCurrentLine;
while ((sCurrentLine = br.readLine()) != null) {
System.out.println(sCurrentLine);
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (br != null) br.close();
if (fr != null) fr.close();
} catch (IOException ex) {
ex.printStackTrace();
}
}
}
}
View tutorial useful to read from files.
I am trying to do same in Eclipse to print a text file and highlight a particular line, but am only able to read text file and not the line in it. Following is my code:
import java.io.*;
public class Bible {
public static void main(String[] args) {
try {
FileReader reader = new FileReader("temp.txt");
int character;
while ((character = reader.read()) != -1) {
System.out.print((char) character);
}
reader.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
Correct code to read a file line by line is
public static void main(String[] args) {
BufferedReader br = null;
FileReader fr = null;
try {
//br = new BufferedReader(new FileReader(FILENAME));
fr = new FileReader(FILENAME);
br = new BufferedReader(fr);
String sCurrentLine;
while ((sCurrentLine = br.readLine()) != null) {
System.out.println(sCurrentLine);
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (br != null)
br.close();
if (fr != null)
fr.close();
} catch (IOException ex) {
ex.printStackTrace();
}
}
}
Now comes the code to highlight.
There are multiple options to do it.
Use html codes in file e.g.
origString = origString.replaceAll(textToHighlight,"<font color='red'>"+textToHighlight+"</font>");
Textview.setText(Html.fromHtml(origString));
Use spannable texts
String text = "Test";
Spannable spanText = Spannable.Factory.getInstance().newSpannable(text);
spanText.setSpan(new BackgroundColorSpan(0xFFFFFF00), 14, 19, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
textView.setText(spanText);
Use some third party library
EmphasisTextView and
Android TextView Link Builder
Am using nio2 to read the external file in my desktop using eclipse. I am getting the exception for the following code.
"java.nio.file.NoSuchFileException: C:\Users\User\Desktop\JEE\FirstFolder\first.txt"
Kindly advise how to resolve it? Tried using command prompt also. Getting the same exception.
public class ReadingExternalFile {
public static void main(String[] args) {
Path p1= Paths.get("C:\\Users\\User\\Desktop\\FirstFolder\\first.txt");
System.out.println(p1.toString());
System.out.println(p1.getRoot());
try(InputStream in = Files.newInputStream(p1);
BufferedReader reader = new BufferedReader(new InputStreamReader(in)))
{
System.out.println("Inside try");
String line=null;
while((line=reader.readLine())!=null){
if (!line.equals("")) {
System.out.println(line);
}
//System.out.println(line);
}
} catch (IOException e) {
System.out.println( e);
}
}
}
I dont understand why you are using a Path object, you can simply make the file using the File object and just using the string as the path, and then wraping it in a file reader object then wrapping that in a buffered reader, the end should look something like this:
public static void main(String[] args) {
try {
File file = new File("C:\\Users\\User\\Desktop\\FirstFolder\\first.txt");
FileReader fr = new FileReader(file);
BufferedReader bfr = new BufferedReader(fr);
System.out.println(bfr.readLine());
bfr.close();
} catch (IOException e){
e.printStackTrace();
}
}
don't forget to close your streams after reading and writing, also use readable names (don't do what I've done, use meaningful names!)
Try below code hope this will help you.
Path p1= Paths.get("C:\\Users\\user\\Desktop\\FirstFolder\\first.txt");
try(
BufferedReader reader = Files.newBufferedReader(p1, Charset.defaultCharset()))
{
System.out.println("Inside try");
String line=null;
while((line=reader.readLine())!=null){
if (!line.equals("")) {
System.out.println(line);
}
//System.out.println(line);
}
} catch (IOException e) {
System.out.println( e);
}
Try this.
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
public class BufferedReaderExample {
public static void main(String[] args) {
BufferedReader br = null;
try {
String sCurrentLine;
br = new BufferedReader(new FileReader("C:\\Users\\User\\Desktop\\FirstFolder\\first.txt"));
while ((sCurrentLine = br.readLine()) != null) {
System.out.println(sCurrentLine);
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (br != null)br.close();
} catch (IOException ex) {
ex.printStackTrace();
}
}
}
}
public static void main(String[] args) {
try {
File file = new File("C:\\Users\\User\\Desktop\\FirstFolder\\first.txt");
FileReader freader = new FileReader(file);
BufferedReader bufreader = new BufferedReader(freader);
System.out.println(bufreader.readLine());
bufreader.close();
} catch (IOException e){
e.printStackTrace();
}
}
I can't seem to understand how to pass a folder to load files from in the classpath. It works with the text file right in the same folder as the .class file or if I use files/test.txt instead of test.txt. What am I doing wrong?
Code:
import java.io.*;
public class T {
public static void main(String[] args) {
String line;
File f = new File("test.txt");
BufferedReader reader = null;
try {
reader = new BufferedReader(new FileReader(f));
while ((line = reader.readLine()) != null) {
System.out.println(line);
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (reader != null) {
reader.close();
}
} catch (IOException e) {
}
}
}
}
Folders and files:
stuff/T.java
stuff/T.class
Somewhere there is a files folder with the test.txt file which I want to give in the classpath.
I am running the test from the stuff folder in the command line in windows using the command java -cp .../files T.
String dirPath = "/Users/you/folder/";
String fileName = "test.txt";
File directory = new File(dirPath);
File file = new File(directory, fileName);
// Read file now
you can use .exists() on any file object to check if it exists or not.
Check if the File is a directory then loop through the contents of the directory if necessary.
public class T {
public static void main(String[] args) {
File f = new File("stuff");
if(f.isDirectory()){
for(File file:f.listFiles()){
printFileName(file);
}
}else{
printFileName(f);
}
}
private static void printFileName(File f) {
String line;
BufferedReader reader = null;
try {
reader = new BufferedReader(new FileReader(f));
while ((line = reader.readLine()) != null) {
System.out.println(line);
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (reader != null) {
reader.close();
}
} catch (IOException e) {
}
}
}
}
If you are unsure of which directory the code is looking for the Files output the current directory.
File file = new File(".");
System.out.println(file.getAbsolutePath());
I have a list of files in the directory C:\Users\Mahady\Desktop\Java 31122011\src\register\
they are like this....
100100545.txt
100545454.txt etc etc
in each file, file data are like this line by line:
Bob
1234
4834
London
9852
1
My question is, how do i read each files one by one in the directory and for each files read all lines except line 3. i would then like to merge this data in word and create letters. thanks
Detailed Answer....
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
public class FileRead {
public static void main(String[] args) {
FileReader fileReader = null;
BufferedReader bufferedReader = null;
try {
File folder = new File("C:/Users/Mahady/Desktop/Java 31122011/src/register/");
if (folder.isDirectory()) {
for (File file : folder.listFiles()) {
fileReader = new FileReader(file);
bufferedReader = new BufferedReader(fileReader);
String line = null;
int lineCount = 0;
while (null != (line = bufferedReader.readLine())) {
lineCount++;
if (3 != lineCount) {
System.out.println(line);
}
}
}
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (null != bufferedReader)
try {
bufferedReader.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
Hope this would help you.
Try this:
File dir = new File("C:\\Users\\Mahady\\Desktop\\Java 31122011\\src\\register\\");
for (string fn : dir.list()) {
FileInputStream fstream = new FileInputStream(fn);
DataInputStream in = new DataInputStream(fstream);
BufferedReader br = new BufferedReader(new InputStreamReader(in));
String strLine;
while ((strLine = br.readLine()) != null) {
System.out.println (strLine);
}
in.close();
}
Obviously, you will need to add exception handling code around this skeletal implementation.