Ошибка illegal character u00bb java

I have a program that allows a user to type java code into a rich text box and then compile it using the java compiler. Whenever I try to compile the code that I have written I get an error that says that I have an illegal character at the beginning of my code that is not there. This is the error the compiler is giving me:

C:UsersTravis Michael>"Program FilesJavajdk1.6.0_17binjavac" Test.java
Test.java:1: illegal character: 187
public class Test
 ^
Test.java:1: illegal character: 191
public class Test
  ^
2 errors

1. If using an IDE, specify the java file encoding (via the properties panel)
2. If NOT using an IDE, use an advanced text-editor (I can recommend Notepad++) and set the encoding to «UTF without BOM», or «ANSI», if that suits you.

answered Jan 2, 2010 at 21:43

In this case do the following Steps 1-7

In Android Studio

1. Menu -> Edit -> Select All
2. Menu -> Edit -> Cut

1. Open new Notepad.exe

In Notepad

4. Menu -> Edit -> Paste
5. Menu -> Edit -> Select All
6. Menu -> Edit -> Copy 

Back In Android Studio

7. Menu -> Edit -> Paste

answered Jan 21, 2018 at 17:16

That’s a problem related to BOM (Byte Order Mark) character. Byte Order Mark BOM is an Unicode character used for defining a text file byte order and comes in the start of the file. Eclipse doesn’t allow this character at the start of your file, so you must delete it. for this purpose, use a rich text editor like Notepad++ and save the file with encoding «UTF-8 without BOM». That should remove the problem.

I have copy pasted the some content from a website to a Notepad++ editor,
it shows the "LS" with black background. Have deleted the "LS" content and 
have copy the same content from notepad++ to java file, it works fine.

answered Mar 15, 2016 at 14:10

answered Nov 11, 2016 at 18:53

instead of getting Notepad++,
You can simply
Open the file with Wordpad
and then
Save As — Plain Text document

answered Jul 3, 2016 at 5:15

I had the same problem with a file i generated using the command echo echo "" > Main.java in Windows Powershell. I searched the problem and it seemed to have something to do with encoding. I checked the encoding of the file using file -i Main.java and the result was text/plain; charset=utf-16le.

Later i deleted the file and recreated it using git bash using touch Main.java and with this the file compiled successfully. I checked the file encoding using file -i command and this time the result was Main.java: text/x-c; charset=us-ascii.

Next i searched the internet and found that to create an empty file using Powershell we can use the Cmdlet New-Item. I create the file using New-Item Main.java and checked it’s encoding and this time the result was Main.java: text/x-c; charset=us-ascii and this time it compiled successully.

answered Apr 10, 2021 at 6:01

IntellIJ Idea 2019

In my java file:

package com.java.testproject.java.TestProjectJava.leetcode;

public class TwoSum {

    public TwoSum() {

    }
}

Here client code:

public class Main {
    public static void main(String[] args) {
        System.out.println("Java version: " + System.getProperty("java.version"));
        System.out.println("Current date: " + new Date());
        System.out.println();

        new TwoSum();
}

But When compile I get error:

what is wrong with my code?

asked Oct 13, 2019 at 11:06

I have a program that allows a user to type java code into a rich text box and then compile it using the java compiler. Whenever I try to compile the code that I have written I get an error that says that I have an illegal character at the beginning of my code that is not there. This is the error the compiler is giving me:

C:UsersTravis Michael>"Program FilesJavajdk1.6.0_17binjavac" Test.java
Test.java:1: illegal character: 187
public class Test
 ^
Test.java:1: illegal character: 191
public class Test
  ^
2 errors

The BOM is generated by, say, File.WriteAllText() or StreamWriter when you don’t specify an Encoding. The default is to use the UTF8 encoding and generate a BOM. You can tell the java compiler about this with its -encoding command line option.

The path of least resistance is to avoid generating the BOM. Do so by specifying System.Text.Encoding.Default, that will write the file with the characters in the default code page of your operating system and doesn’t write a BOM. Use the File.WriteAllText(String, String, Encoding) overload or the StreamWriter(String, Boolean, Encoding) constructor.

Just make sure that the file you create doesn’t get compiled by a machine in another corner of the world. It will produce mojibake.

That’s a byte order mark, as everyone says.

javac does not understand the BOM, not even when you try something like

javac -encoding UTF8 Test.java

You need to strip the BOM or convert your source file to another encoding. Notepad++ can convert a single files encoding, I’m not aware of a batch utility on the Windows platform for this.

The java compiler will assume the file is in your platform default encoding, so if you use this, you don’t have to specify the encoding.

1. If using an IDE, specify the java file encoding (via the properties panel)
2. If NOT using an IDE, use an advanced text-editor (I can recommend Notepad++) and set the encoding to «UTF without BOM», or «ANSI», if that suits you.

http://en.wikipedia.org/wiki/Byte_order_mark

The byte order mark (BOM) is a Unicode
character used to signal the
endianness (byte order) of a text file
or stream. Its code point is U+FEFF.
BOM use is optional, and, if used,
should appear at the start of the text
stream. Beyond its specific use as a
byte-order indicator, the BOM
character may also indicate which of
the several Unicode representations
the text is encoded in.

The BOM is a funky-looking character that you sometimes find at the start of unicode streams, giving a clue what the encoding is. It’s usually handles invisibly by the string-handling stuff in Java, so you must have confused it somehow, but without seeing your code, it’s hard to see where.

You might be able to fix it trivially by manually stripping the BOM from the string before feeding it to javac. It probably qualifies as whitespace, so try calling trim() on the input String, and feeding the output of that to javac.

That’s a problem related to BOM (Byte Order Mark) character. Byte Order Mark BOM is an Unicode character used for defining a text file byte order and comes in the start of the file. Eclipse doesn’t allow this character at the start of your file, so you must delete it. for this purpose, use a rich text editor like Notepad++ and save the file with encoding «UTF-8 without BOM». That should remove the problem.

I have copy pasted the some content from a website to a Notepad++ editor,
it shows the "LS" with black background. Have deleted the "LS" content and 
have copy the same content from notepad++ to java file, it works fine.

I solved this by right clicking in my textEdit program file and selecting [substitutions] and un-checking smart quotes.

In Android Studio

1. Menu -> Edit -> Select All
2. Menu -> Edit -> Copy

1. Open new Notepad.exe

In Notepad

4. Menu -> Edit -> Paste
5. Menu -> Edit -> Select All
6. Menu -> Edit -> Copy 

Back In Android Studio

7. Menu -> Edit -> Paste

instead of getting Notepad++,
You can simply
Open the file with Wordpad
and then
Save As — Plain Text document

Even I was facing this issue as am using notepad++ to code. It is very convenient to type the code in notepad++. However after compiling I get an error » error: illegal character: ‘u00bb'».
Solution :
Start writing the code in older version of notepad(which will be there by default in your PC) and save it. Later the modifications can be done using notepad++.
It works!!!