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This article was co-written by Stephen Cognetta, MBA. Stephen Cognetta is the co-founder and CEO of Exponent, a platform that helps users prepare for tech interviews. Stephen specializes in coaching interviews in product management, software engineering, product marketing, engineering project management, and data science. Stephen holds a bachelor’s degree in computer science from Princeton University, where he graduated with honors and an MBA from Stanford University. Prior to founding Exponent, Stephen was a product manager at Google and co-founder of HackMentalHealth.
This article has been viewed 23,388 times.
If you are interested in making computer programs, mobile apps, websites, games or any software, you need to learn to program. Programs are created from programming languages. This language allows programs to function on computers, mobile phones, or hardware.
Steps
Select Language
- If you’re interested in web development, you’ll have to learn a completely different language than the one used to create computer programs. Mobile application development requires many different skills than machine programming. The whole decision will affect your direction.
- The two most popular languages in this category are Python and Ruby. Both are web application oriented languages, using very readable syntax.
- “Object-oriented” means a language built from the concepts of that “object”, or from the data collected and manipulated by the object. This is a concept used in many advanced programming languages such as C++, Java, Objective-C, and PHP.
- Python – A great language to start with, very powerful once you get used to it. Used for many web applications and games.
- Java – Used on countless programs from games to web applications, and even ATM software.
- HTML – An important starting point for any web developer. Mastering HTML is essential before moving into web development.
- C – One of the oldest languages, C is a powerful tool that is the foundation of modern languages like C++, C#, and Objective-C.
Small Start
- Variable – A variable is a place to store and reference changed data. Variables commonly used to represent “integer”, “letter”, v, v , determine the type of data to be stored. When coding, variables often have recognizable names. This makes it easier to understand how the variable interacts with the rest of the code.
- Conditional Statement – A conditional statement is an action taken based on the correctness of the command. The most common structure of a conditional statement is “If-Then”. If the statement is true (eg x=5) then something happens. If the statement is false (eg x!=5), something else happens.
- Functions and Procedures – The exact name of this concept in each type of language will be slightly different. It may be called “Procedure”, “Method”, or “Callable Unit”. This is essentially a small program within a large program. A function can be “called” by the program multiple times, allowing the programmer to create a more complex program.
- Input data – This is a broad concept, used in most languages. It is concerned with handling user input when storing data. How to centralize data depends on the type of program and data (keyboard, file, etc.). It is closely associated with Output, the part of which is returned to the user, usually displayed on the screen or converted to a file.
- Some languages have an IDE (Integrated Development Environment) that includes a code editor, compiler/or interpreter, and debugger. They allow the programmer to run any required functionality at one location. The IDE may contain visual representations of the object and directory hierarchy.
- There are many code editors from online sources. These programs provide various ways of syntax highlighting and many other friendly development tools.
Create Your First Program
- Hello World on Python
- Hello World on Ruby
- Hello World on CORE
- Hello World on PHP
- Hello World on C#
- Hello World on Javas
- As you experiment with basic program changes, you’ll encounter a lot of things that don’t work. Showing a different approach is one of the expensive skills of being a programmer.
Regular practice
- See programming forums and online communities for the language of your choice. You need to be involved, but not just as a questioner. This community is supposed to be a place for collaboration and discussion, not just a place of question and answer. Feel free to ask if you need help, but be prepared to show off your work and accept different opinions.
- Once you have some experience, consider entering a coding competition. This event is where individuals or teams compete against each other to program multiple functions, often based on a specific theme. This type of event is usually very fun and a good opportunity to meet other developers.
Expand knowledge
- You will find that learning the second language is much faster than the first. Many of the core concepts of programming are quite similar, especially with closely related languages.
Applying Skills
- Freeware is a popular way to contribute small programs or utilities. Developers do not need to receive money but can still make a name in the programming community.
Advice
- If you’re interested in game programming, learn Python, C++, and Java. Of the three languages above, C++ has the best performance, Python is the easiest to learn, Java runs best on Windows, Mac OS and Linux without any changes.
- Learn about Free Software. Study the program source code at the Free Software Directory. Why reprogram when you can do better? Just make sure you understand what you’re programming.
- For most people, programming is something more interesting than the example in the book. Use the search engine to find projects that interest you.
- As you learn something new, you should apply it yourself and then tweak the design, predicting the outcome to make sure you’ve grasped the concept.
- Take advantage of updated applications programming interfaces and official references from software publishers.
- References are always available when you need them. Don’t be shy if you can’t memorize everything. It is important to know where to look for references.
- Conveying knowledge to others is also a practice. It not only strengthens your competence but also helps you think more deeply from different perspectives.
This article was co-written by Stephen Cognetta, MBA. Stephen Cognetta is the co-founder and CEO of Exponent, a platform that helps users prepare for tech interviews. Stephen specializes in coaching interviews in product management, software engineering, product marketing, engineering project management, and data science. Stephen holds a bachelor’s degree in computer science from Princeton University, where he graduated with honors and an MBA from Stanford University. Prior to founding Exponent, Stephen was a product manager at Google and co-founder of HackMentalHealth.
This article has been viewed 23,388 times.
If you are interested in making computer programs, mobile apps, websites, games or any software, you need to learn to program. Programs are created from programming languages. This language allows programs to function on computers, mobile phones, or hardware.
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