Java Program to Print Fibonacci Series

WAP to print Fibonacci series in Java

What is Fibonacci series ?

Fibonacci series is a sequence of numbers where each number is the sum of the two preceding ones.
It starts with 0 and 1.
The series looks like: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34...

Logical Steps:

Initialize two variables no1 = 0 and no2 = 1.
Print no1 and no2.
Use a loop to generate the next numbers by adding no1 + no2.
Assign no1 = no2 and no2 = sum in each iteration.
Repeat for the desired number of terms.

Programs:

Below is the simple program:

public class FibonacciSeries
{
    public static void main(String[] args)
    {
        int n = 10;  // Number of terms to print
        int no1 = 0, no2 = 1;

        System.out.print("Fibonacci Series: " + no1 + ", " + no2);

        for (int i = 2; i < n; i++)
        {
            int sum = no1 + no2;
            System.out.print(", " + sum);
            no1 = no2;
            no2 = sum;
        }
    }
}

Output:

Fibonacci Series: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34

Program Explanation:

Initialization and Variables:
- Two variables no1 = 0 and no2 = 1 are initialized to store the first two numbers of the Fibonacci series.
Display First Two Numbers:
- The program starts by printing the first two numbers, 0 and 1.
Iteration and Calculation:
- A loop runs from 2 to n (the number of terms). In each iteration:
  - Calculate the next number as sum = no1 + no2.
  - Print the new number.
  - Update no1 to no2 and no2 to sum for the next iteration.
Repeat and Complete:
- The loop continues until all n terms are printed.

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