What Does Null Mean in C, C and C#

In computer programming, null is both a value and a pointer. Null is a built-in constant that has a value of zero. It is the same as the character 0 used to terminate strings in C. Null can also be the value of a pointer, which is the same as zero unless the CPU supports a special bit pattern for a null pointer. What Is a Null Value? In a database, zero is a value. The value null means that no value exists. When used as a value, null is not a memory location. Only pointers hold memory locations.  Without a null character, a string would not correctly terminate, which would cause problems. What Is a Null Pointer? The C and C programming, a pointer is a variable that holds a memory location. The null pointer is a pointer that intentionally points to nothing. If you dont have an address to assign to a pointer, you can use null. The null value avoids memory leaks and crashes in applications that contain pointers. An example of a null pointer in C is: #include int main() {   Ã‚  int  *ptr NULL;   Ã‚  printf(The value of ptr is %u,ptr);   Ã‚  return 0; } Note: In C, the null macro may have the type void* but this is not allowed in C. Null in C# In C#, null means no object. Information about null and its usages in C# include: You cannot use 0 instead of null in your programs even though null is represented by the value 0.You can use null with any reference type including arrays, strings, and custom types.In C#, null is not the same as the constant zero.

Summary Of The Banking Concept Of Education

Dominants and Subordinates in Education In â€Å"The ‘Banking’ Concept of Education,† from the Pedagogy of the Oppressed, Revised Edition, Paulo Freire discusses two different types of education: â€Å"banking† and problem-posing. The banking concept of education is when teachers â€Å"make deposits which the students patiently receive, memorize, and repeat† (318), and ‘problem posing’ is when the teachers and students are equal. Instead of being treated as human beings that have their own thoughts and ideas, students are treated as containers that are simply filled by a powerful being, a teacher. In school, teachers are dominants that provide knowledge to the students, the subordinates; the knowledge that students learn are limited to what they’re taught by teachers. Similarly, in Kurt Wimmer’s ‘Equilibrium’, Librians are treated as reservoirs for knowledge. In the movie ‘Equilibrium’, everyone follows the demands of the Father, such as kill people who have feelings, and agree with whatever the Father says. Emotions are what cause people to have differences in opinions, which is why the Father did not want people having any feelings; to prevent disputes. They used a mind altering drug called ‘prozium’ to encourage obedience and prevent people from having their own thoughts. To make matters worse, in the movie, there are numerous screens in which a taped recording of the Father is presented to all of Libra’s inhabitants; they were being brainwashed. Society will soon bear a resemblanceShow MoreRelatedThe Banking Concept Of Education Summary1133 Words   |  5 Pages0701 23 September 2017 The Banking Concept of Education In the essay, â€Å"The Banking Concept of Education†, Paulo Freire compares two teaching concepts used in education, which are the â€Å"banking concept† and â€Å"problem-posing†. In the â€Å"banking concept†, the educator assumes that the students are passive, so they take full control and instill students with information without explaining it to them or receive their input. Freire believes that problem-posing education allows people to develop their humanRead MorePedagogy Of The Oppressed By Paulo Freire930 Words   |  4 Pagescapturing the immense reality of certain educational methods. He explains the â€Å"banking† system of teaching, which portrays the teachers as â€Å"oppressors† who enforce themselves with an authoritative, commanding position upon the â€Å"oppressed† students. 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Psychological Disorders and Treatment Free Essays

Tatiana Saunders PS124: Psychological Disorders and Treatment Prof: Marjorie Vandemark Kaplan University Everyone has a personality with character traits, but when these traits are rigid and self-defeating, they may interfere with functioning and even lead to psychiatric symptoms. A psychological disorder is describe as any disturbance of emotional equilibrium, as manifested in maladaptive behavior and impaired functioning, caused by genetic, physical, chemical, biological, psychological, or social and cultural factors. Schizophrenia is a disease that strikes people in their prime. We will write a custom essay sample on Psychological Disorders and Treatment or any similar topic only for you Order Now It does not matter who you are, you can be diagnosis with schizophrenia. Many people all over the world are affected by bipolar disorders. There are two phases of bipolar manic and depressive. There are many new types of treatments used, such as drug therapy and psychological therapy. Schizophrenia is a serious brain illness that causes changes in how you think, feel, and behave. While treating Sophia Smith since she was 12 years old for schizophrenia. Sophia has presented symptoms such as misbehaving in school and at home due to mother and father divorce when she was reaching the age of 13 years, Sophia was the only child and didn’t really get along with the other children at her school. Sophia has been struggling in school because at times she feels and behaves in the wrong way and she is afraid that her classmates are going to look at her differently because she has a psychological disorder and is currently taking medications to help her behave properly in the classroom. Sophia received therapy every week for six months so that she can feel comfortable talking about what makes her lash out and have trouble behaving in the proper way as well as the way she thinks before she lashes out. While reaching out to Sophia I also reached out to her parents and even though they were separated I introduced the different treatments options that would benefit Sophia in therapy. Cognitive therapy and behavioral therapy was applied to Sophia’s treatment approach in order to addresses her dysfunctional emotions, maladaptive behaviors and cognitive processes and contents through a number of goal-oriented, explicit systematic procedures. There were long time goals set up for Sophia while attending school to engage in activities to help her nteract with the different people in her school, Sophia has also set up long term goals at home to be more productive and be more open to having two homes one with her mother and one with her farther, She will also have therapy sessions with both her mother and farther in order to understand that the divorce was not her mistake, as well as knowing she always can talk to her parents no matter what she is going through they should be the first step in showing her problems. As a professional my obligation is to continue going through therapy with Sophia and making sure she stays on the right path in while dealing with her disorder and always let her know that she can become anyone she wants, she won’t be judged because of her mental disorder. Sophia has made tremendous progress and is not currently taking any medications just receiving therapy once a week and also getting positive feedback from her parents and classmates. More than two million Americans suffer from some form of bipolar disorder, a persistent, severe, sometimes lethal, and lifelong illness (Campbell, 2003). Vanessa Sawyer, like many victims of this illness, struggled for fifteen years before climbing out of the deep dark pit. Primary care physicians play a critical role in recognizing, diagnosing, and treating this disorder. Many symptoms of bipolar disorder go either unrecognized or victims and families are in a state of denial. The majority of patients with bipolar disorder will experience significant symptoms before the age of twenty-five years the disorder is complicated by co-occurring alcohol or substance abuse. While treating my client Bobby Lopez for about three months he has shown little signs of improvement, He started out with another therapist and was reassigned to me for a further study. Bobby stated that he started feeling down and didn’t really want to come out his house at times he would push his wife of three years away just because his mood was unstable, Bobby recently had a child who just turned 3 months he has had no interaction with playing or taking care of his child due to his mood. Before Bobby came to see a therapist he was drinking very heavily and would drink for sunrise to sundown to bypass the time and to make himself feel better. As we have been working on his drinking in order to help him to improve his mood disorder. The main goals of humanistic therapy in Bobby case is to find out how he will perceive himself here and now and how he can recognize growth, self-direction and responsibilities. This method is optimistic and attempts to help individuals recognize their strengths by offering a non-judgmental, understanding experience. Bobby since his treatment has become a better father to his wife and his child, he has also gained a job and his mood is gotten a lot better. I also still her Bobby once a week for therapy at times he brings his wife for family therapy. My professional obligation in the case of Bobby is to make sure he continue on the right path and receiving therapy as well as getting more involved with the world and a better relationship[ with his wife and also to build his self-esteem. In conclusion with as many problems as there are in today’s society, psychological disorders are very common. Since any behavior that is considered abnormal and disturbing can be described as a psychological disorder, there are various types of disorders. Along with these disorders are different techniques used by therapists to diagnose and treat the disorders. http://www. behavenet. com/personality-disorder http://www. counselling-directory. org. uk/humanistic. html How to cite Psychological Disorders and Treatment, Papers

Cats Make the Perfect Pet free essay sample

Cats make the perfect pet I have heard the old saying that dogs are man’s best friend. I don’t know much about dogs, but I do know a lot about cats. I have had a cat as a pet for at least 30 years. They are wonderful and I know I will always have one in my life. I think cats make the perfect pet because they are self sufficient, intelligent, and good companions. The first reason I think that cats make the perfect pet is because they are self sufficient. Cats can take care of themselves. When we take cats into our homes as pets, they don’t require much attention. Another good example of why cats are self sufficient is because they are clean animals and they bathe themselves quite often. Cats also have a built in deodorizer in their saliva and this deodorizer always makes their fur smell nice and fresh. We will write a custom essay sample on Cats Make the Perfect Pet or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page One more good reason that cats are self sufficient is because they do not have to be let outdoors to go the bathroom. That is because cats almost instinctively know how to use the indoor litter box. All we have to do is show them where the litter box is and they will automatically go to it every time they have to use the bathroom.Another example of how cats are self sufficient is the fact that we don’t have to play with them when they are bored. Cat’s can amuse themselves for endless hours by watching the birds play in the yard or chasing a shadow on the wall. Another reason that cats are self sufficient is because even though indoor cats depend on us for food and water, we can leave a cat alone indoors for a few days. All that is needed to leave a cat alone is food, fresh water, and a litter box. My cat has been known to feed himself if he runs out of food.He knows where the cat food is kept, and if he is hungry he will help himself. Cats are very self sufficient and I think that this is one of the traits that make a cat the perfect pet. The second reason that cats make the perfect pets is because they are intelligent. Cats are very inquisitive and inventive creaturesAnother example of a cat’s intelligence is that some cats have a sixth sense. They can tell if someone is sick or upset. My mother told me the story of a cat living in a nursing home that could sense death. The cat would go around and visit the patients in the nursing home. If the cat stopped and stayed in a patient’s room death was imminent. The nursing staff would contact the patient’s family and inform them of the situation. Within a few hours the patient would be dead. The cat has accurately predicted seven deaths. It is obvious that cats are very intelligent animals. The third reason I think that cats make the perfect pet is because they are good companions. When we feel down, frustrated, or irritated a cat can come up to us and wrap around our leg or curl up in our lap and we instantly feel better. These acts of kindness seem to melt away the stress of the day. One good example of why cats make good companions is because petting and nuzzling cats has been known to lower blood pressure in humans, and a cat’s sweet soft purr can lull an insomniac to sleep in an instant.Cats also make good companions because they like to curl up next to us for a good long nap, and there is no better sleeping partner than a cat. Cats don’t care what we look like, they don’t expect anything in return, and they will always keep our feet warm! Another example of why a cat makes a good companion is because at the end of the day they will not come running up to us at the door and lick us to death like a dog. They are just glad to see us. A meow and a flip of the tail is all that is needed to say hello. One more reason cats make good companions is because they can live long lives.If they are taken care of properly it is not uncommon for them to live into their teens or twenties. Also cats are good companions because they are soft and cuddly and easy to love. When looking for a good companion, a cat will make a wonderful choice and a lifelong friend. My love for cats goes back a long time. In a few years I will probably become the crazy cat lady. Cats are independent and self sufficient. They are very intelligent animals and they make good companions. I think these things make the cat a perfect pet.