[java] Illegal Escape Character "\"

I want to get the name at the end of a link so I did that

if( invName.substring(j,k).equals("\")){
                                 copyf=invName.substring(0,j);}

Eclipse said String literal is not properly closed by a double-quote

How can I compare String with this char \ ?

Use "\\" to escape the \ character.

I think ("\") may be causing the problem because \ is the escape character. change it to ("\\")

You can use:

\\

That's ok, for example:

if (invName.substring(j,k).equals("\\")) {
    copyf=invName.substring(0,j);
}

do two \'s

"\\"

it's because it's an escape character