Introduction to Variables and Values | Programming Tutorial for Beginners - KnowledgeHut

Looking for the proper explanation of Variables and Values in Java Programming along with examples? You're in the right place! 👨‍💻 This programming tutorial for beginners will teach you about what are Variables in java programming from scratch. 👉 Perfect for both beginners and seasoned programmers alike.
This introduction to variables and values video will leave you with a solid understanding along with practical examples. So what are you waiting for? Let's dive in!

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📢 Queries Solved in this Video:
✦ What are variables? with Example
✦ Overview of Variables and Values
✦ Rules of Constructing Variable Name
✦ Declaration of Variable
✦ What is the variable in C
✦ Initialization of variables

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➡️ Here's a brief about "Introduction to Data Structures in Java Programming [The Basics]"
👉 Variables are an essential part of any programming language. Variables store data that can be accessed and used throughout a program. Each variable has a name, a data type, and a value.
👉 Let’s look at an example. Say we have a variable called num that holds an integer value. The variable declaration would look like this:
int num;
In the above line, “int” is the data type and “num” is the variable name. The value is not specified yet, so it is given the default value of 0.
Now let’s assign a value to the variable. We can do this with the assignment operator, which is the equals sign (=):
num = 5;
Now the variable num holds the value 5.
We can also create variables with initial values. This is done with the declaration and assignment operator together:
int num = 5;
Here, the variable num is declared and assigned the value 5 in the same line.
Variables can also be used to store strings or characters. For example, we could create a variable to store a name:
String name = ""John"";
In this example, “String” is the data type, “name” is the variable name, and “John” is the value.

👉 Variables are important because they allow us to store and manipulate data in a program. By giving variables meaningful names, we can make our code more readable and easier to understand.

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