Important Notice:

Practice-It will be discontinued as of November 1st, 2024. After this date, the website will remain online for a transitional period, but login will be restricted to University of Washington NetID authentication. This marks the next phase towards the platform's full retirement. Thank you for your use and support of the application over the years.

If you are looking for an alternative, a similar tool, CodeStepByStep, was developed independently by the original author of Practice-It, and is available at codestepbystep.com**

logo Practice-It logo

Main Page → Problems → Solve a Problem

reportBlankLines

Language/Type: Java file processing Scanner
Author: Marty Stepp

Write a method named reportBlankLines that accepts a Scanner containing an input file as a parameter and that outputs the line numbers of any blank lines and that reports the total number of blank lines in the file. For example, given the following input file: 

Remember that a file 
can have blank lines 
like the one below: 
 
A blank line: 
 
is read as a String 
of length 0 
 
by Scanner

Your method should print the following output: 

line 4 is blank 
line 6 is blank 
line 9 is blank 
total blank lines = 3

Notice that each blank line produces a line of output and that there is a final line of output reporting the total number of blank lines. Also notice that lines are numbered starting with 1 (the first line is line 1, the second line is line 2, and so on). If the input has no lines or no blank lines, output the following: 

total blank lines = 0
Type your solution here:


This is a method problem. Write a Java method as described. Do not write a complete program or class; just the method(s) above.

You must log in before you can solve this problem.


Log In

If you do not understand how to solve a problem or why your solution doesn't work, please contact your TA or instructor.
If something seems wrong with the site (errors, slow performance, incorrect problems/tests, etc.), please

Is there a problem? Contact a site administrator.