Thread: Weared behaviour during reading a simple text file

As a beginner, I would like to read a text file that contains aproximately 1.500 lines of plain text.
So I created a text file (Code_A) with 1.500 lines of text. If I open the text file I notice that the file contains the 1.500 lines of text.
Subsequently, If I read the text file (Code_B) then only the lines 990 to 1.500 are displayed. The lines 1 to 899 are not displayed.

I have tried different posibilities to read the data eg:

BufferedReader
FileReader
scanner
String

They all produces the same problem and display only the last lines from 900 to 1.500.

I have no idea why only the lines 900-1.500 are displayed. Can someone point me to the right direction ??
Thanks

Code_A to write the text file

       try {
                FileWriter writer = new FileWriter("MyFile.txt", true);
 
				BufferedWriter bufferedWriter = new BufferedWriter(writer);
 
                for(i= 1 ; i < 1500; i++){               	 
 
                    writer.write(i + "    Hello World this is my first JAVA test.");
                    writer.write("\r\n");   // write new line               
 
                    }  
 
                bufferedWriter.close();
            } catch (IOException e) {
                e.printStackTrace();
            }

Code_B to read the text file

            try {
                FileReader reader = new FileReader("MyFile.txt");
                BufferedReader bufferedReader = new BufferedReader(reader);
 
                String line;
 
                while ((line = bufferedReader.readLine()) != null) {
                    System.out.println(line);     /* only lines 900-1500 are displayed */
                }
                reader.close();
 
            } catch (IOException e) {
                e.printStackTrace();
            }