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arghyaxcodes merged 5 commits into from
Aug 5, 2024
Merged

Add static keyword docs #688

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ecc4fa8
feat(docs): Create static-keyword
arghyaxcodes Aug 5, 2024
fcee95d
feat(nav): Update docs nav
arghyaxcodes Aug 5, 2024
090a921
feat(nav): Update docs navs
arghyaxcodes Aug 5, 2024
3871b1e
Rename static-keyword to static-keyword.mdx
arghyaxcodes Aug 5, 2024
ea4ee66
Update static-keyword.mdx
arghyaxcodes Aug 5, 2024
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1 change: 1 addition & 0 deletions src/navs/documentation.js
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Original file line number Diff line number Diff line change
Expand Up @@ -28,4 +28,5 @@ export const documentationNav = {
pages['continue-statement'],
],
'Java Arrays': [pages['arrays']],
'Java OOPS': [pages['static-keyword']],
}
36 changes: 36 additions & 0 deletions src/pages/docs/static-keyword.mdx
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@@ -0,0 +1,36 @@
---
title: Java static keyword
description: In this tutorial, we will learn how to use the Java static keyword.
---

## What is a `static` keyword in Java?

In Java, if we want to access class members, we must first create an instance of the class. But there will be situations where we want to access class members without creating any variables.
In those situations, we can use the `static` keyword in Java. If we want to access class members without creating an instance of the class, we need to declare the class members static.
The `Math` class in Java has almost all of its members static. So, we can access its members without creating instances of the Math class.

### Example 1

```java
public class Main {
public static void main( String[] args ) {

// accessing the methods of the Math class
System.out.println("Absolute value of -12 = " + Math.abs(-12));
System.out.println("Value of PI = " + Math.PI);
System.out.println("Value of E = " + Math.E);
System.out.println("2^2 = " + Math.pow(2,2));
}
}
```
### Output:

```bash
Absolute value of -12 = 12
Value of PI = 3.141592653589793
Value of E = 2.718281828459045
2^2 = 4.0
```
In the above example, we have not created any instances of the Math class. But we are able to access its methods: `abs()` and `pow()` and variables: `PI` and `E`.

It is possible because the methods and variables of the Math class are static.