Fibonacci Series in Java

Teacher
Sateesh M
Category
Programaming
Review
- (3268 Reviws)

The Fibonacci series is a sequence of numbers in which each number is the sum of the two preceding ones, usually starting with 0 and 1. The series is named after the Italian mathematician Leonardo Fibonacci, who introduced it to the Western world in his 1202 book "Liber Abaci."
The Fibonacci sequence has many interesting properties and appears in various areas of mathematics and science. It is often used as a simple example to introduce the concept of recursion (where a function calls itself).

Here is the first few terms of the Fibonacci series:

0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, ...

As you can see, each term is the sum of the previous two terms. For example, the third term (1) is the sum of the first two terms (0 and 1), the fourth term (2) is the sum of the second and third terms (1 and 1), and so on.

The Fibonacci series has many interesting properties and appears in various areas of mathematics and science. It is often used as a simple example to introduce the concept of recursion (where a function calls itself).
The Fibonacci series is a sequence of numbers where each number is the sum of the two preceding ones, usually starting with 0 and 1. In Java, you can write a program to generate the Fibonacci series using a loop. Here is an example:

    
public class Fibonacci {
  public static void main(String[] args) {
    int n = 10; // number of elements in the series
    int first = 0;
    int second = 1;
    System.out.print(first + " " + second); // printing first two elements

    for (int i = 2; i < n; i++) {
      int next = first + second;
      System.out.print(" " + next);
      first = second;
      second = next;
    }
  }
}

This program will generate the first 10 numbers in the Fibonacci series: 0 1 1 2 3 5 8 13 21 34. You can change the value of n to generate a different number of elements in the series. You can also use recursion to generate the Fibonacci series in Java. Here is an example:

    
public class Fibonacci {
  public static int fibonacci(int n) {
    if (n == 0) {
      return 0;
    } else if (n == 1) {
      return 1;
    } else {
      return fibonacci(n - 1) + fibonacci(n - 2);
    }
  }

  public static void main(String[] args) {
    int n = 10; // number of elements in the series
    for (int i = 0; i < n; i++) {
      System.out.print(fibonacci(i) + " ");
    }
  }
}

In this example, the fibonacci() method is a recursive function that takes an integer n as input and returns the nth element in the Fibonacci series. The main() method uses this function to generate the first 10 numbers in the series and prints them to the console. Both of these examples generate the Fibonacci series using different approaches, but they produce the same result. You can use whichever method you prefer in your own program.