[SOLVED] Escape Sequence of bell alert not working in java

Escape Sequence of bell alert not working in java

I am using escape sequence (JAVA) "\a" or '\a', then it simply gives me errors...

My code...

class Bell{
    public static void main(String args[]){
        System.out.println("\a");
    }
}

I don't know why it keeps on saying:

Bell.java:4: error: illegal escape character
        System.out.println("\a");
                             ^
1 error

When I use '\a' instead of "\a", again it shows me error:

Bell.java:4: error: illegal escape character
        System.out.println('\a');
                             ^
Bell.java:4: error: unclosed character literal
        System.out.println('\a');
                           ^
Bell.java:4: error: unclosed character literal
        System.out.println('\a');
                              ^
3 errors

Occurs in both VS Code and CMD but it gives error. Can anyone tell me what's going wrong?

My JDK version is 15.0.1

Solution

There is no such escape sequence in Java.

See the JLS section 3.10.6 for which escape sequences are valid. There is no "single-character-after-backslash" escape sequence for the bell character.

If you want to represent U+0007 in a string or character literal, use \u0007.