TEST plan:
I used the Balance.java source file as my testing file. 
Here are the following changes I made, in order, that match the order of the screen dump tests.

--run on correct file.
--removed the closing } at line 66, col 14
--removed the opening { at line 119, col 26
--removed the opening ( at line 120, col 25
--removed the closing ] at line 26, col 55
--removed the ' at line 49, col 17 
  (which turned most of the rest of the file into a quoted string)



Screen dump:

C:\java\progs>java  Balance Balance.java
All delimiters match: file syntax CORRECT.

C:\java\progs>java  Balance Balance.java
Opening { at line 17, column 22 never closed...

C:\java\progs>java  Balance Balance.java
Closing } at line 125, column 1 never opened...

C:\java\progs>java  Balance Balance.java
Opening { at line 119, column 26 does not match closing ) at line 120, column 26


C:\java\progs>java  Balance Balance.java
Opening [ at line 26, column 53 does not match closing ) at line 26, column 55

C:\java\progs>java  Balance Balance.java
Opening { at line 48, column 27 never closed...
Opening { at line 44, column 54 never closed...
Opening { at line 38, column 49 never closed...
Opening { at line 24, column 8 never closed...
Opening { at line 23, column 9 never closed...
Opening { at line 19, column 41 never closed...
Opening { at line 17, column 22 never closed...