It's Been a Long Time: A Fresh Update

Why Stopped

Due to Emergency now life back on track and here i am :) .

What Studied in Previous days.

That’s Right never stopped learning. Learned many new things in Java.

What i Learned :

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functions : (what is it and how its helps to code).

So, function (also known as methods) are the Instructions that are grouped together. simple. It is a container for logic, allowing you to group related operations into one place.

A method can:

• Take inputs (called parameters).

• Perform some actions.

• Return a value (or not, if it's a void method).

Why Are Methods Important in Java?

There are many reasons to use This:

1. Resuability.

2. Modularity.

3. Maintainability.

4. DRY (Do Not Repeat Yourself) Very Important. (you don’t need to write same code again and again)

Types of Methods in Java.

• Predefined Methods.

• User defined Methods.

How to Write it.

This is the Syntax of it.

returnType methodName(parameters) {
    // method body
}

Explanation:

returnType :

Here returnType means which type of data you want from the function when it Ends.

methodName :

method name meand the name that you want to give the method.

parameters :

It means Function takes a input that it function on. means it also need some Data that upon it process function. parameter is that thing.

Working method (function):

public class Main {
    public static void greet() {
        System.out.println("Hello, World!");
    }

    public static void main(String[] args) {
        greet();
    }
}

Calling :

you also have to call the function to run it.

Here greet(); is the calling of the function and it your function takes the parameter in that you call it something like this greet(“parameter“);

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What’s Next ?

Arrays.

Introduction

At first, I had no idea what they were, but after a bit of practice, they started to make sense. In this blog post, I’ll explain arrays the way I understand them, with simple examples. If you’re also just starting out, I hope this helps!

What is an Array?

Nothing Just a Collection of similar Data types. It helps you store multiple values in a single place.

How to create a new Array:

int[] array = new int[5]; //this is creating the new array which is size 5 and empty
                          // in simple we just reserve the space in memory of a size 5 array.

int[] array \=> this creates at compile time of program.

new int[5] \=> this Happen on the Runtime dynamically. Create object in Heap memory.

Imagine you want to store the names of fruits. Without an array, you'd have to do this:

String fruit1 = "Apple";
String fruit2 = "Banana";
String fruit3 = "Cherry";

But with an array, you can store all of them together:

String[] fruits = {"Apple", "Banana", "Cherry"};

Accessing Array Elements:

System.out.println(fruits[0]);  // Output: Apple
System.out.println(fruits[1]);  // Output: Banana
System.out.println(fruits[2]);  // Output: Cherry

Changing and Adding Values:

fruits[1] = "Orange";
System.out.println(fruits[1]);  // Output: Orange

That’s all for the new start will try to upload as regular as possible.

Peace✌️.