Write a Java program to calculate the power of a number using recursion

This program prompts the user to input a base number and a power number, and calculates the result of raising the base to the power using a recursive function. Here's how the program works:

The program prompts the user to input a base number and a power number.
It then calls the calulatePower function with the base number and power number as arguments.
The calulatePower function recursively calculates the result by multiplying the base number by the result of calling calulatePower with the same base number and a decremented power number.
The recursion continues until the power number reaches 0, at which point the function returns 1.
The calculated result is returned to the main function and printed to the console.

Overall, the program works correctly and efficiently to calculate the result of raising a number to a power using recursion.

Source Code

import java.util.*;
public class PowerNumber
{
	public static void main(String[] args)
	{
		Scanner input = new Scanner(System.in);
		System.out.printf("Enter the Base Number : ");
		int base = input.nextInt();
		System.out.printf("Enter the Power Number : ");
		int pow = input.nextInt();
		int res = calulatePower(base, pow);
		System.out.printf("Result : " + res);
	}
	public static int calulatePower(int b, int p)
	{
		int res = 1;
		if (p > 0)
		{
			res = b * (calulatePower(b, p - 1));
		}
		return res;
	}
}

Output

Enter the Base Number : 4
Enter the Power Number : 3
Result : 64

Write a Java program to calculate the power of a number using recursion

Source Code

Output

Example Programs

Recursion Programs in Java