Part 8 C# What are Variables Literals and Bit

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the Gangwar

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Published on November 21, 2016 4:25:11 AM ● Video Link: https://www.youtube.com/watch?v=RyhKUpbVfGM

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Tutorial

Duration: 3:54

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Topics Are: variables?, bit, Assigning values/Literals:
In this Video, we talked about how to use variables to store information for later use and how to get information from a user. We also showed that not all variables are created equal and that the scope in which a variable is defined changes its availability throughout the program. Now that you know the different types of variables and how to use them.
Variables are used to store information to be referenced and manipulated in a computer program. They also provide a way of labeling data with a descriptive name, so our programs can be understood more clearly by the reader and ourselves. It is helpful to think of variables as containers that hold information. Their sole purpose is to label and store data in memory. This data can then be used throughout your program.
Naming variables is known as one of the most difficult tasks in computer programming. When you are naming variables, think hard about the names. Try your best to make sure that the name you assign your variable is accurately descriptive and understandable to another reader. Sometimes that other reader is yourself when you revisit a program that you wrote months or even years earlier.
When you assign a variable, you use the = symbol. The name of the variable goes on the left and the value you want to store in the variable goes on the right.
Up until now, you've only been able to assign data to variables from within the program. However, in the wild, you'll want other people to be able to interact with your programs in interesting ways. In order to do that, we have to allow the user to store information in variables as well. Then, we can decide what we'd like to do with that data.
The bit is a basic unit of information used in computing and digital communications. A binary digit can have only one of two values, and may be physically represented with a two-state device.
Sometimes abbreviated as b, a bit is short for binary digit and is a single unit of information that can have a value of either 0 or 1 (off or on, false or true, low or high). Eight bits make a byte, as shown in the picture. So, if you had two bytes (word) it would be 16 bits (2 x 8=16) and 10 bytes would be 80 bits
A bit (short for binary digit) is the smallest unit of data in a computer. A bit has a single binary value, either 0 or 1. Although computers usually provide instructions that can test and manipulate bits, they generally are designed to store data and execute instructions in bit multiples called bytes.
Java Literals are syntactic representations of boolean, character, numeric, or string data. Literalsprovide a means of expressing specific values in your program. For example, in the following statement, an integer variable named count is declared and assigned an integer value.
An anonymous function is a literal for the function type. In contrast to literals, variables or constants are symbols that can take on one of a class of fixed values, the constant being constrained not to change.
Constants can be of any of the basic data types like an integer constant, a floating constant, a character constant, or a string literal. ... An integer literal can be a decimal, octal, or hexadecimal constant. ... An integer literal can also have a suffix that is a combination of U and L ...