Java: Calculate power of a number without using multiplication and division operators

Last update on March 11 2025 11:06:03 (UTC/GMT +8 hours)

Power Without Multiplication or Division

Write a Java program to calculate power of a number without using multiplication(*) and division(/) operators.

Sample Solution:

Java Code:

import java.util.*;
public class solution {	
  public static int power(int b, int e) 
    { 
        if (e == 0) 
            return 1; 
              
        int result = b; 
        int temp = b; 
        int i, j; 
          
        for (i = 1; i < e; i++) { 
            for (j = 1; j < b; j++) { 
                result += temp; 
            } 
            temp = result; 
        } 
          
        return result; 
    } 
 
   public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        System.out.print("Input the base: ");
        int b = scan.nextInt();
		System.out.print("Input the exponent: ");
        int e = scan.nextInt();
        scan.close(); 
		if (b>0 && e>0)
		System.out.println("Power of the number: "+power(b, e));		
		}
 }

Sample Output:

 Input the base:  2
Input the exponent:  5
Power of the number: 32

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Java program to compute exponentiation recursively using only addition and subtraction.
• Write a Java program to calculate power by simulating multiplication with repeated addition recursively.
• Write a Java program to implement an algorithm for power calculation that relies solely on iterative addition.
• Write a Java program to compute a^b recursively without using multiplication or division operators, using a helper method for repeated addition.

Java Code Editor:

Contribute your code and comments through Disqus.

Previous: Write a Java program to multiply two integers without using multiplication, division, bitwise operators, and loops.
Next: Write a Java program to calculate and print average (or mean) of the stream of given numbers.