BigInteger pow() Method in Java

The java.math.BigInteger.pow(int exponent) method is used to calculate a BigInteger raise to the power of some other number passed as exponent whose value is equal to (this)^exponent. This method performs operation upon the current BigInteger by which this method is called and exponent passed as parameter. 
Syntax: 
 

public BigInteger pow(int exponent)

Parameter: This method accepts a parameter exponent which is the exponent to which this BigInteger should be raised to. 
Returns: 
This method returns a BigInteger which is equal to (this)^exponent. 
Exception: 
The parameter exponent must be positive number (exponent >= 0) otherwise ArithmeticException is thrown. 
Examples: 
 

Input: BigInteger1=321456, exponent=5
Output: 3432477361331488865859403776
Explanation: BigInteger1.pow(exponent)=3432477361331488865859403776. 
321456^5=3432477361331488865859403776

Input: BigInteger1=45321, exponent=3
Output: 93089018611161
Explanation: BigInteger1.pow(exponent)=93089018611161. 
321456^5=93089018611161

Below programs illustrate pow() method of BigInteger class 
Example 1: 
 

Output: 
 

Result of pow operation between BigInteger 321456 and exponent 5 equal 
to 3432477361331488865859403776 
 

Example 2: 
 

Output: 
 

Result of pow operation between BigInteger 41432345678 and exponent 6 equal to 5058679076487529899393537031261743031889730764186441745527485504 
 

Example 3: 
Program showing exception when exponent passed as parameter is less than zero. 
 

Output: 
 

java.lang.ArithmeticException: Negative exponent 
 

Reference:https://docs.oracle.com/en/java/javase/12/docs/api/java.base/java/math/BigInteger.html#pow(int)