def get_number
  begin
    print "Please enter a number (no strings, floats, etc plz)\n > "
    digit = gets
    Integer(digit)
  rescue ArgumentError => e
    puts "oh no you didn't"
    puts e
    retry
  end
end


n = get_number
puts "you entered #{ n }"
=====================
Please enter a number (no strings, floats, etc plz)
 > no
oh no you didn't
invalid value for Integer: "no\n"
Please enter a number (no strings, floats, etc plz)
 > 3.45
oh no you didn't
invalid value for Integer: "3.45\n"
Please enter a number (no strings, floats, etc plz)
 > 45
you entered 45

count = 0
begin
   DBI.connect(...)
rescue DBI::Error
   if count < 3
      sleep 10
      count += 1
      retry
   end
   raise # Re-raise the error if 3 failed attempts
end

count = 0;

while(true)
{
    try...
    catch...
        if ++count > 2
            rethrow
    sleep 10
}

count = 0;

while(true)
{
    try...
    catch...
        if ++count > 2
            rethrow
        else 
            sleep 10
            continue
     
    break
}

<?= $WP = 'http://en.wikipedia.org/wiki';
       ah("$WP/Semantic_Wiki", 'Semantic wikis'); ?> are interesting.

DATABASE_CONNECTION_RETRIES = 3

def connect_to_database
  retries = 0
  begin
    # connect to database code here that raises some exception
  rescue DatabaseConnectionError
    puts "Oh no!"
    retries += 1
    retry if retries < DATABASE_CONNECTION_RETRIES
  end
end