4 Ways to Calculate Power of Number in Java

Here I have shared the 4 different ways to calculate power of number in Java.

  1. Using Loop
  2. Using Recursion
  3. Using Math.pow()
  4. Using BigInteger.pow()

4 Ways to Calculate Power of Number in Java

1. Using Loop

We can calculate the power of number by repeatedly multiplying the number by itself in a loop. This method works only for positive integer power.

 

Output

Enter a number and its power:
3
3
27

 

2. Using Recursion

Recursion can also be used to do this task. This method also works only for positive integer power.

 

3. Using Math.pow()

It is the simplest and very frequently used way. Math.pow() method takes tow double type arguments. First argument is the number and second is the power.

 

4. Using BigInteger.pow()

BigInteger class provides method pow() to raise a number to a power. It can be used in following way.

 

Comment below if you know any other way to calculate power of number in java.

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