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  • Student Records Desktop Application for Teachers

    Student Records Desktop Application for Teachers

    Describe the most ambitious DIY project you’ve ever taken on.

    SYSTEM DESIGN

    Various data entry forms are described and it shows how a user with generally interact with the system. The module shows how JavaFX will be used to design graphics for the user. Here we also describe how software
    components interacts with each other and how database is designed.

    The user login shows the first window that appears when user first loads the application to the working memory. Immediately the login form is loaded, it should invoke the MAMP server software opening the MySQL database. This is important because if the database is closed, login form will generate an error as it cannot access the user details. Before the users can access the
    software features, they need to login with their username and their password given when they were registered as application users.

    Home page

    The home page shows the various access points for various parts of the software. It is divided into three sections; one section is a module that have all the forms that can be used to enter data in to the system. The Other module contains all the data forms that are used to update data. Data
    update forms uploads the current data and allows the user to edit the information displayed before saving it again. The view Data module enables various reports generated by the system to be seen. The dashboard is designed to be attractive to the user.

    Student registration form

    This a form where personal details of a student is first entered. It asks for the basic information of the students like three names, birth certificate number and locations. The form is in two sections, one section which is on the left is for general information about the students whereas the right section is for gathering data specific to admission of the student in the school. In the
    registration section, teacher’s number for the class in which the student is being admitted should be able to be retrieved. There is a suggestion of creating two forms by separating this form in into separate student registration form and student admission during implementation, but for
    now, it will serve its purpose of bringing a conceptual framework for development.

    Marks entry form

    It shows a form where student marks should be entered. Besides is a table where marks should appear after marks is saved. The table is just a structure and not the real table. When entering marks, the student data should be searched by use of the button on the upper right hand side of
    the form. The user enters student’s Admission number on a textbox and then press the search button. The student name should appear on the textbox labelled “Student name:”

    Some results

    The following paragraphs below and photos shows some transactional process of my project.

    The student marks can be entered after he/she is registered from the marks entry form; Student is first searched from the student table and the details added to the marksheet by clicking the update button. The marks are entered such that whatever the marks, CAT1 is evaluated to 20% of the
    total evaluation in a term, Midterm is evaluated to 20% and end term is evaluated to 60%.

    After save button is placed, the student exam data is placed on a database table as shown calculating some important statistic like mean

    If you would like the whole project, send your contact details on the remarks column.

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  • Explaining upthrust force

    Explaining upthrust force

    Objects will weigh less in water than in air.

    Take a spring balance and hang some mass on it. Determine the weight of the mass and then push the mass up slightly with your hand. What have u observed?

    When you place some upward force on a mass hanging on the spring, it’s weight is seemed to reduce as observed by lesser leading of the spring balance.

    When you apply a force upward on the object hanging on a spring balance, you are providing some force that is acting opposite to the weight of the object. Weight is always acting downward on a straight line that is directed towards the center of the earth.

    When you push the object upward, you are reduce the overall resultant downward force by providing some force acting opposite to the weight.

    From the law of addition of forces, when two forces are acting in opposite direction on the same object, then one force is considered positive force and the other one taken as negative force . The total resultant force acting on the object is the algebraic sum of the forces acting on that object Consider the setup below that shows some weight acting on an object hanging freely on air.

    Spring balance measuring some weight

    We consider the force acting on the object which is it’s weight as W and any force applied upward as U as shown.

    Illustrating forces acting on an object hanging on air

    The resultant force will be given as W’=W-U. Where W’ represents the reduced weight.

    If U is greater than W’, then the object will accelerates upward, otherwise it will accelerates downward with reduced force.

    The downward acceleration force is balancing with tensional forces on the spring causing some extension, hence the object remains on the spring balance but causing it to extend in length.

    Upthrust Force

    When an object is immersed in a fluid, the upward forces on the object are provided by pressure in the fluid. That is why objects weighs less in water because some weight of the object is being cancelled out by the upward forces in water. This upward forces produced by fluid on an object is known as the upthrust force. It is the same force that causes object to float in water.

    Illustrating upthrust force,

    However, it is important to note that, for heavier objects falling in air, the upthrust by air is soo small such that it cannot be notices. We say that upthrust of air on an object is negligible.

    Paper and Stone

    If you release a piece of paper and a stone from some distance above the ground, you will notice that the stone reaches the ground faster than the paper. This is because upthrust force on paper is comparable to that of paper, because a piece of paper has very small weight. However, the stone weight is much more than the upthrust that can be provided by paper hence the total resultant downward forces is larger than that of paper hence causing more acceleration downward.

    Later on, we will see that upthrust fall is a characteristic of both volume of the object and density of the fluid.

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  • Underdogs

    Underdogs

    If you could permanently ban a word from general usage, which one would it be? Why?

    In Oxford dictionary, the word underdog is a noun used to mean a person, team, country or group of people thought to be in a weaker position than others and therefore not likely to be successful to win in a competitions. 

    First, that word I always feel like it is a discriminatory because the stronger one usually don’t refer themselves as topdogs or overdogs which is the opposite of underdogs.

    Second, it is unfair to think that any one that overcame several handles from their locality to be selected to present their region in a competitions are weak. No one goes and pick the weak people to present them in a competitions, before a team or a person has come to be in a competition, they have gone through other several competitions and won.

    Third, if the gathering for competitions is a gathering of human beings, why talk about dogs. Why don’t you use words like under teams or under people. Why dogs yet dogs are not participating. Are dogs aware that there are human beings being referred as underdogs?

    To refer to a study case, I have observed big teams being knocked out of competition by the soo called a weaker team. There was a time, the world football giant, Brazil was eliminated in group stages in world cup competitions. Games like football are full of surprises where unexpected team wins in a competition. It happens all the time and I wonder where this word underdogs comes from.

    Few days ago we observed African championships played in ivory coasts and strong teams were given hard times by the teams perceived as weak.

    Sometimes I feel like it is used to intimidate some nations or regions. Why would anyone strong want to engage in a competition with a weak dog. A strong person that would enjoy a competition with a weak person is either stupid or don’t believe on themselves.

    Therefore, as a matter of fact, this word should be removed from English dictionaries and it’s usage be burned. Any broadcaster for example in sports that continue using this word should be fined for every mention of the word. The English experts should find a suitable replacement of the word, but more importantly, we should stop thinking there are weak people in a competition.

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  • Dating

    Dating

    Daily writing prompt
    What is the biggest challenge you will face in the next six months?
    View all responses

    Dating is a stage of romantic relationships in which two individuals engage in an activity together, most often with the intention of evaluating each other’s suitability as a partner in a future intimate relationship.
    It falls into the category of courtship, consisting of social events carried out by the couple either alone or with others.

    The reason dating is a challenge is because am an indoor person. I prefer spending time alone, writing or coding. I can easily forget about our dating and this will really upset my partner. Sometimes am soo tired to talk and all i want is just sleep or scroll my phone endlessly without evening seeing what is on the screen, thinking nothing. This is a state i refer as hanging. It happens when i have been teaching the whole day long or have been writing for some hours and so am mentally tired. My partner may wonder why am not calling.

    During dating period, the partners presents the best of themselves to their partner, am not likely to do that because am always real, 24 hours 7 days a week. I will not be different three years later from what you saw in the first day, and so my inability to impress is likely to make me loose good people that are looking for perfection, causing me emotional pain in the process.

    The idea of always going for a date is not pleasant to me because am addicted to indoor activities, hope my partner will enjoy it, otherwise i expect conflict of interests.

    Otherwise i don’t expect any other difficulties in future, because i can manage every situation and everything, except another human being. I can work on computers, repair hardwares and correct softwares, but when it comes to dealing with another human beings, i find it difficult because human beings are complicated creatures. You will upset them when you intends the bests and leave without giving proper explanations. If i have to avoid difficulties, then i have to stay alone for the next six months, and everything about me will be just fine.

    please tell me about what you finds difficult in the comments.

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  • What is communication

    What is communication

    Communication can be described as an active process of exchanging information between individuals using common system of symbols, signs and behavior (wilkinson,1984).

    There are various levels of communication that includes:

    • Intrapersonal level(internal monologue/reflection)
    • Interpersonal level
    • Group Communication
    • mass communication

    Intrapersonal level of Communication

    It is a communication that individuals do within themselves without releasing any message to a target audience outside themselves.

    It is also known as autocommunication or inner speech. It can be described as what you tell yourself.

    It constitutes our own imaginations and our inner thoughts. For example if am preparing for an interview, i would imagine some of the questions that would be asked. I would create a virtual interviewer and imagine them asking me the questions, then i would answer them within myself as if am answering to the panel. All this is intrapersonal because the the participants of the communication resides inside self and no external participants. If i called my sister and i ask her to pretend to be an interviewer, then that would be an interpersonal communication.

    Intrapersonal communication occurs, when you evaluate or examine the interaction that occurs between yourself and others. This form of communication occurs before and during other forms of communication as well. For instance, you might argue with yourself during a conversation in which someone asks you to do something you don’t really want to do and before you accept or decline, you mull over the alternatives in your mind. Intrapersonal communication also includes such activities as solving problems internally, resolving internal conflict, planning for the future, and evaluating yourself and your relationships with others.

    Interpersonal level of communication

    It refers to exchange of information between two or more people and it involves exchange of messages, ideas and information between individuals. It can involves some methods like face-to-face conversations, phone calls, text messages, sending emails, social media chats etc.

    Interpersonal communication can be described as the process of using messages to generate meaning between at least two people in a situation that allows mutual opportunities for both speaking and listening.

    With interpersonal communication, two or more individuals exchange messages using verbal and non-verbal cues.

    Group level Communication

    It refers to communication among three or more individuals with a common goal of sharing ideas and information collaborating on a project,resolving conflicts or negotiations.

    A group is a collection of people with specific goals or objectives.

    Group communication is used to take a collective decision on a problem, an issue or a matter of common interest. Participants involved in group communication takes an active part in communication to achieve a set of goals, develop social contacts or find the solution to a problem that concerns all members of the group.

    Public communication

    It is a communication that happens when a message sender is focused on transmitting a message to a specific group. In public communication, a person or a group of people share information to an audience or give presentation on a certain topic to deliver a certain message. Good examples of public communication is a classroom lecture, sermon or speech from public gatherings.

    People delivering public speech may allow their audience to respond to the message and ask crucial questions.

    Illustrating Communication

    Mass Communication

    It is the process of imparting and exchanging information through mass media to a large group of population using various forms of media technology like print media, radio broadcasting, television broadcasting etc.

    Mass communication focuses on using of a particular resource in transmitting information to various receivers.

    It can also be described as the transmission of messages to many recipients at a time.

    Through mass communication, information can be transmitted quickly to many people who do not necessarily stay near the source of information.

    Mass communications is usually done through various channels that includes:

    • Social networks
    • magazines
    • books
    • films
    • Internet
    • billboards
    • newspapers
    • Radio broadcasts
    • Televisions
    • websites

    components of communication

    There are various components that makes up a communication which includes the message sender, message receiver, the message, channel, feedback, context, barriers and effects.

    Communication is often seen as a transaction and interactive process such that it is a process of constructing meaning by taking into account the different perspectives of the participants.

    communication has three major functions no matter the context in which it is applied:

    • Assists individuals understand subject matter, their environment, job processes, themselves and others.
    • Persuasion and influence
    • Initiate and maintain human relations
    • It is a key to initiating and maintaining human relationships

    Apart from verbal communication where participants rely on the spoken and written words, we also communicate through behavior and by using non-verbal symbols and signs.

    Many a times, non-verbal communication is given more importance than verbal communication because it be more accurate than the verbal one.

    non-verbal communications includes:

    • Facial expressions
    • Gesture
    • Body movements
    • Posture
    • Appearance
    • Dressing
    • Space and distance
    • Tone of voice
    • Paralinguistic features
    • Time and artefacts.

    Paralinguistics encompasses voice elements such as the pitch, volume, tone, intonation, rhythm, and silence and non-voice elements such as facial expressions, body language, hand gestures, and eye contact.

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  • It is okay

    It is okay

    What advice would you give to your teenage self?

    Welcomed in corrupted world

    We were born in unperfected world. The whole life is full of learning, nobody gave us a manual on how to find our way around the world, and so whatever we became was highly influenced by who was our teachers and our environment. Sometimes we acted according to what we felt because we did not know better. We cannot go back to rectify what we did and start afresh because time is irreversible, therefore, keep thinking and regretting on what we did and what we failed to do is pointless, waste of time and energy, null and void.

    Possibilities of goodness

    Most often we dwell soo much on past that we fail to discover the much wealth of possibilities ahead. Our history trick us into believing that it has got us forever. What we did in past should not prevent us from being good people today because if the gods expects us to leave our past behind and focus on tomorrow and today, who are we to dwell on what is unnecessary.The holy scriptures states:

    “Acts 17:30 And the times of this ignorance God winked at; but now commandeth all men every where to repent:”

    We let past define us

    We are usually defined by what happened in our life’s and so our behavior and thoughts are to greater extent influenced by the traumas we faced. You would be surprised to discover the number of people living a life below what they could have possibly lived because they are always running away from their past, or they are hearing voices from their past. There are people whose actions, thoughts and imaginations are always dictated by what happened rather than what should happen. some of this people are people with guilt and are not able to go beyond their past actions and behaviors. This kind of people are soo entangled on what happened such that it obscures their ability to see what can happen. They can hence let opportunities goes past them or fail to capitalize on assets they have because of their thoughts that were created from past negative experiences, hindering them from moving forward.

    As an example, we make decisions out of bitterness because of those that did hurt us. We fail to create good relationships because we want to revenge on every man or woman we meet in life because of that one special person we loved that hurt us so much. We fear to walk boldly in the world because we were abused in childhood and developed self hate. We label ourselves failure because of school grades we got in exams we did many years ago. We live in pity for ourselves because of the parents we lost in your age etc…and the list is endless.

    Many of us dwelling in the past

    We have soo many people living in the past, there are grownups that are fathers, managers, mothers, presidents, preachers and every kind of professionals that are still stuck in their childhood issues. Leaders that have childhood issues causes suffering to their subjects because they can make decisions based on their fears and insecurity.

    Last December I visited relatives and I discovered that at their 50s they are still in pain because of the rejection they received from relatives who did not like them. Their father’s abandoned them when they were still children, their father is already dead but their heart still cries in pain because of what he did over 40 years ago. I discovered this has lead them to make bad decisions, reject people and even mistreat others, some of whom could have made their lives very successful. They could not keep jobs because they have issues with interpersonal relationships. Failing to keep relationships that can help our career and professional growth is too much power to give to our past.

    They repel anyone that comes close to them because of what happened beyond their control, whole 40 years ago!. It is amazing how a single incidence can decides what we do and become so many years later. But why should we give single a single occurrence soo much power over us when God of the universe who is our creator does not even expect us to dwell in the past as shown in the holy writings:

    “Isaiah 42:9
    Behold, the former things are come to pass, and new things do I declare: before they spring forth I tell you of them.”

    Leave the past to the past

    So as we grow up, we should decide and make a strong resolve that we are leaving the past where it belongs and focus on the possibilities that can happen. Don’t focus on who rejected you, there is possibilities of people cherishing you in all other days of your life. You can leave a health life, free from mental traumas of the past; Believe me it can happen. Whatever the trauma, may it be experience of war, violence or death of people close to us, we can start telling our mind that there exists tranquility and peace and beauty of life. There are beautiful things beyond our challenges, pains and things that makes us disturbed. The best things is to start telling ourselves that better things can happen. We can succeed no matter what has happened or is happening. Even if you are in prison, there are chances of you can be free if you believe it long enough, no matter how slight are your chances.

    You can let your pains torments you forever and rob you joy of life or you can decide to see the beauty in life and focus goods that can happen. It is to a great extent a matter of choice.

    So to my young self, it matters a lot what will happen, it matters very little what happened, focus ahead.

    Tell yourself the same things please!

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  • Matrices of Transformations

    Matrices of Transformations

    A transformation is a change in position, size or shape of an object. Transformation includes:

    • Reflection
    • Rotation
    • Enlargement
    • Translation
    • Shear

    Matrices can be used to transformation an object by multiplying vertices of an object on a Cartesian plane with a 2 x 2 matrix

    Reflection on line x=0 (Y-axis)

    The matrix that can map objects on this transformation is

    Reflection on Y=0 (X-axis)

    multiply the object with

    Reflection on the line y=x

    multiply the object vertices by:

    Reflection on the line y= -x

    multiply the object vertices by:

    positive Quarter turn about the origin

    positive turn is turning anticlockwise. Multiply the object vertices by

    Half turn about the origin

    Multiply the object vertices by:

    Positive three quarter turn about the origin

    This is same as rotating 270o anticlockwise. Multiply the object vertices by:

    An Enlargement from center with a scale factor k

    Multiply the object vertices by:

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  • Mango Juice

    Mango Juice

    A mango is an edible stone fruit produced by a tropical tree known as Mangifera indica whose origin can be traced to northwestern Myanmar, Bangladesh, and northeastern India. It’s cold juice is refreshing, giving a feeling of relaxation and tranquility, A very pleasant sip during a hot day especially if you live in hot Asian region or tropical Africa.

    India is the leading mango producer in the world with an estimated 24.7 million tons of mango production per year followed by Indonesia at 3.6 million tons per year and china at 2.4 million tons per year. Other major producers of mangoes includes Pakistan, Brazil, Mexico and Nigeria. Many other countries produces mangoes and mango tree is a common tree in many places. Therefore, it is not difficult to find mangoes. Mango Juice is therefore cheap to obtain but with numerous health benefits. It is a juice you can easily make because it does not need sophisticated tools or expensive ingredients.

    Health benefits of mangoes includes:

    • Has compounds that shields cells from the DNA damage that can leaf to degenerative diseases like type 2 diabetes and cancer.
    • supports heart health in terms of managing the levels of lipids you have in your blood
    • is a great source of carotenoids which is very important in boosting immune system functionality
    • contains high level of vitamin C which produces collagen tissue that gives our skin elasticity it needs preventing wrinkles and sagging.
    • It ease constipation
    • Have an antioxidant called beta-carotene that helps promote eye health

    Making of mango Juice

    INGREDIENTS

    • Mangoes
    • Milk
    • Sugar
    • 3 ice cubes (optional)

    Tools

    • Blender
    • Peeler
    • Tablespoons

    Procedure

    • Wash an rinse your mangoes
    • pat with a kitchen towel to dry for easy peeling.
    • peel and dispose of the stones
    • chopp into chunks and into the blender.
    • add 3 tablespoons of sugar at this point to add sweetness or 2 tablespoons of honey or palm sugar or coconut sugar.
    • add 2 ice cubes (optional) which help to thicken the milkshake.
    • blend till smooth. There should be no chunks of mangoes in the shake. if the shake is too thick you can opt to add more milk to be slightly thinner.
    • pour in glasses and serve with a topping of diced mango chunks or sprinkles or whipped cream

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  • Thought i needed Java to program

    Thought i needed Java to program

    Java is a type of coffee that contains caffeine, a stimulant substance that is proven to increase the release of fats from the fat tissues and helps boost the resting metabolic activity.

    When we were learning programming, we were told that people that developed Java programming language were drinking a lot of coffee as they develop the codes for the language, hence they called it Java. I came to associate computer programming with coffee. So i went to shop and bought 2kg of coffee. After the busy day of work, i will take a cup of coffee and i could feel refreshed and able to stay awake for some 4 hours learning Java.

    I wanted to be an expert in computer programming and as i was young and naïve, i imagined that expert programmers have to drink coffee in order to succeed.

    One day while in university i developed signs of blood pressure and the doctor recommended that i should reduce my coffee intake. I would have a 2 litre thermo flask with boiled water, have a jar of coffee by me and a jar of sugar. All i could was to make cup after another for coffee and make sip after sip as i went through voluminous books on computer science.

    I used to enjoy it very much. By the end of 4-5 hours of study, i could not sleep because i was intoxicated. My blood was rushing and my brain could not settle, it was becoming dangerous, working hard during the day and having sleepless night because of litres of coffee in my body. Most often i would forget to cook or eat, because i was eager to read my next page about Java or C programming, until i became serious sick because of strain.

    Nowadays, i don’t take many cups of coffee but a cup of coffee every two hours is in my schedule daily. Java coffee is an important substance in my house. Nowadays s i prefer milky coffee especially in the mornings. Another favorite coffee apart from Java is cappuccino which was very common among team members i briefly worked with on a JavaScript program. They introduced it to me and since then, it is part of my favorite drink.

    Before i was introduced to coffee, i used to like tea very much, but the amount of tea i have taken is much much less than coffee that i enjoy very much.

    Hope you enjoy a cup of coffee as you read this post:;

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  • Rates

    Rates

    Rates are mathematical expressions that shows the relationship between two quantities. It shows how changes of one value is causing change to another variable.

    A common examples of rates is when growth is compared with time. Time is an important factor when determining rates. For example when we compare rate of growth of a population over a number of years we are comparing number of people that has been added to the population over a certain period of time, maybe six months or one year, probably through birth or immigration.

    A business can determine rate of increase of it’s sales by determine the number of sales across given periods of time like months or years.

    Another example of rate is speed that determines how object changes it’s distance from point where it started it’s motion to the change of time.

    Example

    Calculate the rate of change of flow of oil in a pipeline per minute if an 800000 litres storage tank was filled in 4 hours 10mins.

    Solution

    The number of minutes in 4 hours and 10mins is (4*60)+10 =250mins.

    Rate of flow = numbers of liters flowed/ time taken in minutes

    Rate of flow=800000/250 hence

    Rate of flow= 3200 liters per min

    which we can also write as 3200litres/min.

    Note:

    The above rate of flow could also be expressed in terms of litres per hour where in that case the number of hours will be 4(1/6) hours which can also be expressed as 25/6 hours.

    Hence rate of flow in hours will be:

    800000liters/(25/6) hours

    Which will be (800000/25)*6 and hence rate of flow=192000liters/hour

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