Microsoft Internship Interview-Delete all comments for a Java file

Description: Delete all comments for a valid Java file, with a comment "//" or "/* * * * *" indicated.

Note: text in single or double quotation marks may include "//" or "/* * * * * *", but not part of the comment.

Solution: After reading a file, a character is processed in one character.

1  Public voidDeleteallcomment (InputStream is)throwsIOException {2         inti =Is.read ();3          while(I! =-1) {4             Charc = (Char) I;5             if(c = = '/')) {6                 Charj = (Char) Is.read ();7                 if(j = = '/')) {8 Deletethisline (IS);9}Else if(j = = ' * ') {Ten Deleteuntilend (IS); One                 } A}Else if(c = = ' \ ' | | c = = ' "')) { - echostring (is, c); -}Else { the System.out.print (c); -             } -i =Is.read (); -         } +     } -      +     //Delete to "//"Note at the beginning of the A     Private voidDeletethisline (InputStream is)throwsIOException { at         Chari = (Char) Is.read (); -         Charj = (Char) Is.read (); -          while(true) { -             if(i = = ' \ r ' && j== ' \ n ')) { -                  Break; -}Else { ini =J; -j = (Char) Is.read (); to             } +         } -     } the      *     //Delete comments that are denoted by "/* */" $     Private voidDeleteuntilend (InputStream is)throwsIOException {Panax Notoginseng         Chari = (Char) Is.read (); -         Charj = (Char) Is.read (); the          while(true) { +             if(i = = ' * ' && j== '/')) { A                  Break; the}Else { +i =J; -j = (Char) Is.read (); $             } $         } -     } -      the     //output the contents of single or double quotes as-is -     Private voidEchostring (InputStream is,intStartthrowsIOException {Wuyi         CharEnd = (Char) Is.read (); the          while(End! =start) { - System.out.print (end); WuEnd = (Char) Is.read (); -         } About}

Microsoft Internship Interview-Delete all comments for a Java file