- A variable is a container for some type of data.…In the C language that container holds an integer,…floating point, character, or other value.…But philosophically speaking, what actually is a variable?…In this movie I help you explore the concept of the variable.…You'll see various ways a variable is described,…how to determine its size and its storage location.…In the typical C language variable declaration…you learn two tidbits about the variable.…
Its type and its name.…Here you see an integer variable declared.…It's an integer variable, int, and its name is a.…The variable is uninitialized or never assigned a value.…Even so, you can use it in the code as is shown…in line 7, Build and Run the program.…On my screen, the value of a is equal to 50.…You might see the value zero, although that's just random.…Unlike other programming languages,…C does not initialize variables as they're declared.…
Internally, the program allocates a chunk…of memory to store the variable's information.…That chunk isn't initialized, it's not set to zero.…
Author
Released
10/10/2014- Understanding a C program
- Adding comments
- Using escape characters
- Working with values and placeholders
- Introducing variables
- Making a decision with if
- Looping
- Adding functions
- Manipulating strings
- Building arrays
- Nesting structures
Skill Level Beginner
Duration
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Introduction
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Welcome46s
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Using the exercise files1m 20s
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1. Getting Started
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Programming overview3m 56s
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Configuring Code::Blocks3m 47s
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Compiling a sample program4m 59s
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2. Programming Basics
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Understanding a C program7m 43s
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Sending text to output2m 13s
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Adding comments to the code2m 26s
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Introducing variables7m 3s
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Using character I/O6m 24s
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Working with math7m 19s
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Making more calculations5m 34s
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3. Program Flow Control
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Looping with while8m 2s
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Nested loops4m 8s
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Adding a function6m 8s
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Passing values to a function2m 54s
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4. Intermediate C Language Concepts
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Manipulating strings6m 28s
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Building arrays6m 45s
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Understanding structures5m 3s
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Working with time functions5m 53s
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5. Advanced C Language Concepts
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Understanding variables5m 57s
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Creating pointer functions5m 36s
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Working with pointer arrays4m 21s
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Allocating memory3m 13s
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Building a linked list8m 5s
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Conclusion
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Next steps2m 11s
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Video: Understanding variables