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in java, the exponentiation operation (raising a number to a power) is not directly represented by a specific operator like `^` (which is used for bitwise xor in java). instead, you typically use the `math` class, which provides utility methods for mathematical operations, including exponentiation.

using `math.pow()`

the `math.pow(double a, double b)` method is used to raise a number `a` to the power of `b`. it returns the result as a `double`. here’s the method signature:



`a` is the base.
`b` is the exponent.

example code

below is a simple java program that demonstrates how to use the `math.pow()` method to calculate exponentiation.



explanation of the code

1. **importing the math class**: the `math` class is part of the `java.lang` package, which is imported by default, so you don't need to explicitly import it.

2. **defining the base and exponent**:
we define a `base` and an `exponent` to perform the exponentiation operation.

3. **using `math.pow()`**:
the `math.pow()` method is called with the base and exponent as arguments, and its result is stored in the `result` variable.

4. **printing the result**:
we print out the result using `system.out.println()`.

5. **additional examples**:
the example includes calculations with a negative exponent and a fractional exponent, demonstrating the versatility of the `math.pow()` method.

output

when you run the above code, the output will look like this:



summary

use `math.pow()` to perform exponentiation in java.
the method takes two `double` arguments: the base and the exponent.
it returns the result as a `double`, which can represent both positive and negative exponents, as well as fractional exponents.

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