Comments for Ruby Code (Usage, Single, and Multi-Line)

Comments in your Ruby code are notes and annotations meant to be read by other programmers. The comments themselves are ignored by the Ruby interpreter, so the text inside the comments isnt subject to any restrictions. Its usually good form to put comments before classes and methods as well any piece of code that may be complex or unclear. Using Comments Effectively Comments should be used to give background information or annotate difficult code. Notes that simply say what the next line of straightforward code does are not only obvious but also add clutter to the file. Its important to take care not to use too many comments and to be sure the comments made in the file are meaningful and helpful to other programmers. The Shebang Youll notice that all Ruby programs start with a comment that begins with #!. This is called a shebang and is used on Linux, Unix and OS X systems. When you execute a Ruby script, the shell (such as bash on Linux or OS X) will look for a shebang at the first line of the file. The shell will then use the shebang to find the Ruby interpreter and run the script. The preferred Ruby shebang is #!/usr/bin/env ruby, though you may also see #!/usr/bin/ruby or #!/usr/local/bin/ruby. Single-Line Comments The Ruby single-line comment begins with the # character and ends at the end of the line. Any characters from the # character to the end of the line are completely ignored by the Ruby interpreter. The # character doesnt necessarily have to occur at the beginning of  the line; it can occur anywhere. The following example illustrates a few uses of comments. #!/usr/bin/env ruby # This line is ignored by the Ruby interpreter # This method prints the sum of its arguments def sum(a,b)   Ã‚  puts ab end sum(10,20) # Print the sum of 10 and 20 Multi-Line Comments Though often forgotten by many Ruby programmers, Ruby does have multi-line comments. A multi-line comment begins with the begin token and ends with the end token. These tokens should start at the beginning of the line and be the only thing on the line. Anything between these two tokens is ignored by the Ruby interpreter. #!/usr/bin/env ruby begin Between begin and end, any number of lines may be written. All of these lines are ignored by the Ruby interpreter. end puts Hello world! In this example, the code would execute as Hello world!

Mental Disabilities And The Death Penalty - 1259 Words

Mental Disabilities and the Death Penalty Image a life where you have difficulty defending yourself and nobody can clearly understand you. Now visualize trying to convince others that you are innocent of a crime. Since the early 80s, more than sixty mentally ill criminals have been executed the US (Mental Illness on Death Row). This paper will discuss the relationship between the law and the challenges faced by mentally criminals from tries to appeals and execution. It provides examples of some of the more famous cases of the execution of the mentally ill and describes current legislative. But we would try answer the whether the mentally disabled criminals should be charged with a death penalty. Throughout this paper, we will use Borromeo s definition of someone with mental issues. He stated mental retardation is a lifelong condition of impaired or incomplete mental development... ( Borromeo 178). Some examples of these illnesses include but are not limited to major depression, bipolar disorder, post traumatic stress disorde r and borderline personality disorder . Since 1976, all capital trials in the US are divided into two phases. The first phase is when they question is whether the defendant is innocent or not. If the defendant is found guilty then he or she is eligible for the death penalty. In the second phase of the trial the jury will decide whether to recommend a life sentence or a death sentence for the defendant. These phases include interrogation, mitigation,Show MoreRelatedA Study On Death Row Inmates Essay1722 Words   |  7 Pagespsychiatrist at New York University, Dr. Lewis, has conducted a study on death-row inmates, how their brains work and what affect the damage had on their conviction. By doing so Dr. Lewis paved the way for other researchers, such as Kent Kiehl and Jonathan H. 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India Water Pollution Free Essays

What  is  India  Doing  to  Control  Water  Pollution   Caused  by  Sewage  Waste? Studies  found  that  sewage  waste  is  the  main  cause  of  water  pollution  in  India. The  problem  is caused  by  the  poor  treatment  of  dumping  sewage  and  the  failure  to  maintain  sewage  treatment  plants. The  Central  Pollution  Control  Board,  a  company  that  monitors  environmental  issues  in  India,  has created  the  National  Water  Quality  Monitoring  Network,  which  monitors  the  quality  of  waters  all  year. We will write a custom essay sample on India Water Pollution or any similar topic only for you Order Now The  network  monitors  waters  all  over  India. Samples  of  water  are  taken  frequently  and  checked  for bacteria  and  other  harmful  substances  within  the  water. Other  ways  of  sewage  treatment  include  air flotation,  dual  media  filter,  activated  carbon  filter,  sand  filtration  and  sludge  drying  beds. These  methods all  take  place  in  sewage  treatment  plants. Water  treatment  plants  are  very  expensive  and  are  needed  to be  maintained  constantly. Removal  of  sludge  is  said  to  be  the  most  untreated  area  of  water  treatment. This  is  because  of  the  poor  design  and  poor  maintenance  of  the  sludge  treatments. India  has  set  policies to  control  sewage  pollution  in  water. he  Ministry  of  Environment  and  Forests  has  created  financial  and technical  support  systems  to   promote  the  proper  treatment  of  water. The  problem  with  India’s  water treatment  is  that  the  government  is  not  putting  enough  effort  into  making  the  water  Ã‚  usable  for  its  citizens. The  government  should  promote  the  health  hazards  and  future  issues  of  water  pollution  so  the  citizens can  learn  to  treat  their  water  better. Informing  citizens  is  also  a  way  of  treatment  because  people  will  be aware  of  the  issues  water  pollution  will  cause  for  them  and  therefore  they  will  take  action. How to cite India Water Pollution, Papers

The Study of Cow Shit Essay Example For Students

The Study of Cow Shit Essay The hot topic of conversation among tree climbers at the 1997 ISA Conference in Salt Lake City was the new French Prusik knot. It was somewhat controversial since the International Tree Climbing Championship committee was faced with the decision of whether to allow its use in competition. It had been previously disallowed in 1995. In actuality, the knot has been around in arboriculture for awhile. In 1993 I had the good fortune to be one of the Americans to attend the first European Congress on Tree Care in Lahnstein, Germany. To this day those of us that were there remember the Congress as a forum that helped us all to realize the importance of the ISA and the International Tree Climbing Championship series. Francois Dussenne from Belgium introduced the Machard Tresse, an unusual climbing hitch, to all those present at the first European Tree Climbing Competition. He had used the climbing hitch in 1992 to help him win his second French Championship. Everyone who had a chance to try the Machard tresse agreed that it was more complex than the other climbing hitches. There was an equal sense of intrigue and caution among us. We will write a custom essay on The Study of Cow Shit specifically for you for only $16.38 $13.9/page Order now The Machard tresse is, in my opinion, an advanced knot that requires experience and practice to integrate into a climbing system. I have seen several different ways of tying the knot, utilizing a variety of rope lengths of cord that is being used today. In this article we are endeavoring to compare and contrast several experienced climbers views on this knot. Each reader must assess the advantages and disadvantages before drawing their own opinions. Ken Palmer is the only three time International Tree Climbing Champion. He has been climbing trees for over 22 years. He is president of ArborMaster Training, Inc., where he and partner, Rip Tompkins, are well known for their training programs. Just when you thought it was safe to sit in your Blakes hitch a new hitch emerges. The hitch I would like to introduce in Climbers; Corner debut is the very same hitch 1997 World Tree Climbing Champion, Mark Chrisholm used in Salt Lake City, Utah this past summer. Second place Kay-Olaf Busemann and I were the only other two who used this new hitch in competition. This hitch has been used by mountaineers and rescue teams in France and Europe for many years. In fact Machard is the name of a French rock climber. I first saw Francois Dussenne of Belgium demonstrate this hitch to North American tree climbers in Halifax in 1994. Since then it has developed a small cult following. The hitch is radically different looking than anything we are used to and so at a glance you tend to want to shrug it off. Then why does the current world champion prefer this hitch? This hitch outperforms any other hitch I have used in all the right ways. That is not to say that it is perfect it has its limitations as any other hitch does. never binds or remains stuck when load relieved facilitates rapid and easy descents very nicely accommodates the fair lead system, even fair lead itself very economical in that cost per split tail is about $30.00 extremely strong due to the fact it is a closed knot system reduce to no grab when tied with same diameter line or hard lay line must be comprised of proper material and proper length very rapid descents initiated with very little effort cannot be tied easily using a locking snap, best using a carabiner These are all things I have experienced and verified with others who have been using this hitch for the past several years. Most people once they try it, feel the advantages far out weigh the disadvantages. .u9f92c473ba777997d59b28067385d4cf , .u9f92c473ba777997d59b28067385d4cf .postImageUrl , .u9f92c473ba777997d59b28067385d4cf .centered-text-area { min-height: 80px; position: relative; } .u9f92c473ba777997d59b28067385d4cf , .u9f92c473ba777997d59b28067385d4cf:hover , .u9f92c473ba777997d59b28067385d4cf:visited , .u9f92c473ba777997d59b28067385d4cf:active { border:0!important; } .u9f92c473ba777997d59b28067385d4cf .clearfix:after { content: ""; display: table; clear: both; } .u9f92c473ba777997d59b28067385d4cf { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .u9f92c473ba777997d59b28067385d4cf:active , .u9f92c473ba777997d59b28067385d4cf:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .u9f92c473ba777997d59b28067385d4cf .centered-text-area { width: 100%; position: relative ; } .u9f92c473ba777997d59b28067385d4cf .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .u9f92c473ba777997d59b28067385d4cf .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .u9f92c473ba777997d59b28067385d4cf .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .u9f92c473ba777997d59b28067385d4cf:hover .ctaButton { background-color: #34495E!important; } .u9f92c473ba777997d59b28067385d4cf .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .u9f92c473ba777997d59b28067385d4cf .u9f92c473ba777997d59b28067385d4cf-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .u9f92c473ba777997d59b28067385d4cf:after { content: ""; display: block; clear: both; } READ: Matt’s huck finn analysis EssayPractice and test this hitch at a low height to be sure you are completely familiar with it prior to moving higher in the canopy. Never start or try any new technique for a first time during a high-risk live environment. Always stick with what you know for sure first. Never incorporate something new on the job until you and everyone working with you are completely comfortable with it in practice and theory. Finally, plan your practices and jobs. Accidents

Melvilles Use of Observation and Eye Symbolism in Redburn essays

Melvilles Use of Observation and Eye Symbolism in Redburn essays "I was then but a boy," (Melville 43) Wellingborough Redburn says of the day he left home a mere fifteen. Such is often the case in life. Looking back a man can see the naivete' and mistaken assumption so commonly made from inexperience. Examination of pictures and books and a glass ship in his mothers house has Redburn deciding that he will go to sea (Melville 52) and he heads off to find great adventure in "remote and barbarous countries" (Melville 45). Alienation is his first acquaintance due to differences in age, social standing and education. By the time the ship puts to sea, he calls himself Ishmael due to his total isolation from those around him (Melville 114). Because he has difficulty communicating and understanding other people and the world, the green lad carefully observes what occurs around him. He quickly discovers he knows only the surface of people and things. So, to Redburn, the eye does not represent actual knowledge (Elworthy 23), but only perceived knowledg e. Melville uses constant references to the eye and to observation in building this story about the difficulty of accurately decoding reality. Melville shows that to truly discover the gold of knowledge (and reality), one must dive down and get the treasure... something few people desire or think of doing. To do this, however, the protagonist must decide whether or not to face a sort of insane desire ...to come at the plunder (Melville 49) and become a man. Simple observation leads Redburn to often make false judgment, such as when he decides to visit the captain, who he thinks is his friend and mentor. Even though the sailors and the first mate tell him a sailor cannot speak to the captain (Page121-22), he determines to do so and receives an embarrassing rebuff (Melville 124). Once he gets his sea legs, and learns to communicate better with those around him, such as the various sailors aboar...

Five Tips for Writing a Travel Series

Five Tips for Writing a Travel Series Travel writing is considered one of the more glamorous writing gigs. After all, what could be better than getting paid to travel? While the reality is a bit more mundane (generally low pay, tight deadlines, viciously competitive markets) it’s still a load of fun. With the advent of travel blogs, more and more writers are expanding their experiences from single features to longer series. This allows you to focus on various aspects of a destination in different posts and tell a longer story arc. Here are five tips to writing an online travel series. These also work well for print features. 1. You don’t have to start at the beginning: While your journey has a beginning, middle, and end, you aren’t writing a novel. You don’t have to open your series with your arrival. This is usually your worst part of the trip anyway, so why inflict it on your reader? Instead, draw them in with a scene that brings the destination to life, such as when Rolf Potts started his series about going on a Star Trek cruise with the moment everyone discovered he wasn’t a fan of the show. Very rarely are the beginnings of a journey exciting, although my ten-hour drive across the desert to Somaliland made for a good opener. That time, and that time only, the start had excitement, color, vivid experiences, and a bit of danger. The rest of my trips have opened with me jetlagged and grumpy at some foreign airport. 2. Don’t forget that what’s normal to you is new to your reader: As we get accustomed to a new place, we begin to forget the little details that make for a great story. The best photo I never took in Iraq was of my driver eating hummus at a roadside restaurant as a sheep watched him from just outside the window. When I saw this I smiled and thought, â€Å"Appetizer and main course!† What I should have done was take a picture. That juxtaposition wasn’t unusual for me anymore, but I bet my readers would have gotten a good laugh out of it. Well, maybe not the vegetarians. 3. You don’t have to be a good photographer: I’m a mediocre photographer, and yet I’ve sold hundreds of photographs to print and online publications. How? I go to interesting places and take lots of pictures. It’s that simple. 4. Mix short and long pieces: Short, punchy pieces accompanied 5. The story is rarely about you: There are two types of traveler- those who describe the places they’ve been, and those who talk about how they went to a bunch of places. The first person is informative and interesting; the other is a boring braggart. While it’s your journey, you aren’t the most interesting thing about it. The people you meet and the things you see are. Leave yourself out of the picture unless it’s really, truly part of the story. There is very little about me in my series on  living in Harar, Ethiopia. When I visited the little-known Argobba tribe, or interviewed a traditional healer, I let them speak for themselves. In my post about meeting a nine-year-old refugee from Syria, however, my reactions were an important part of the story. A monk examines a medieval illustrated manuscript at his monastery on Lake Tana, Ethiopia. (copyright Sean McLachlan) Marsh Arab children in southern Iraq. (copyright Sean McLachlan)

Business Plan for Camera Phone Essay Example | Topics and Well Written Essays - 1250 words

Business Plan for Camera Phone - Essay Example The detailed plan covers the techniques of marketing and promotional plan which can help the company to achieve its target market. Our product is exclusive and unique in its own way. Our cell phone is slider phone and its offer a 6.3 mega pixel camera. The camera automatically focuses and record videos as well. Following are the exclusive features of our cell phone: Our exclusive camera phone gives clients many opportunities to have some funny and amazing things as they have camera with themselves all the times. Our camera phone is designed to replace your digital camera because of its exclusive technology of 6.3 mega pixels. Another interesting feature is its applications. Now the customer can browse internet easily through our cam phone through GRPS which is very easy. It also includes calendar items, contacts, synchronizing notes etc which are very effective. The biggest benefit you gain while having our company cam phone is that you can email pictures from our cam phone. This is the convenient way to send copies of pictures from our cam phone. The clientele has not to bear any additional cost for hardware or software. However, the client might be charged for such message at very nominal rate. From the research and studies we come to know that's there is huge potential of our company to excel in the market. The sales of installed base of camera phone increases rapidly. And it's around one billion by the end of 2008. The emerging market of first digital camera, results in continuous increase in sales. We are also of the opinion that the launch of our camera phone will be huge success as camera phone sales rising in the