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public class Question { public static void main(String args[]) { int f = 0, g = 1; for(int i = 0; i <= 5; i++) { System.out.println(f); f = f + g; g = f - g; } }}

Question

public class Question { public static void main(String args[]) { int f = 0, g = 1; for(int i = 0; i <= 5; i++) { System.out.println(f); f = f + g; g = f - g; } }}

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Solution

This Java program is implementing the Fibonacci sequence. Here's a step-by-step explanation:

  1. The program starts with the main method, which is the entry point for any Java program.

  2. Two integer variables f and g are declared and initialized. f is set to 0 and g is set to 1. These are the first two numbers in the Fibonacci sequence.

  3. A for loop is set up to iterate 6 times (from 0 to 5 inclusive).

  4. Inside the loop, the current value of f is printed to the console.

  5. Then, f is updated to be the sum of f and g (the next number in the Fibonacci sequence).

  6. g is then updated to be the difference between the new f and the old g (which is the old f). This effectively moves the sequence one step forward, ready for the next iteration.

  7. The loop then repeats for the next iteration.

The output of this program would be the first 6 numbers in the Fibonacci sequence: 0, 1, 1, 2, 3, 5.

This problem has been solved

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