# Power of a number using Java ## Find the Power of a Number in Java

Given two integer inputs as number and the power, the objective is to raise the number to a power given. Therefore, we’ll write a Code to Find the Power of a Number in Java Language.

```Example
Input : 2 3
Output : 8
```

## Find the Power of a Number in Java Language

Given two integers as the number and power inputs, the objective is to raise the number input to the power input and print the value. To do so we’ll use the concepts of loops and recursion. Here are few methods to Find the Power of a Number in Java Language,

• Method 1: Without While Loop
• Method 2: With While Loop

We’ll discuss the above mentioned methods in depth in the upcoming sections.

### Java Code

Run
```public class Main
{
public static void main(String[] args) {

double base = 1.5;
double expo1 = 2.5;
double expo2 = -2.5;
double res1, res2;

// calculates the power
res1 = Math.pow(base, expo1);
res2 = Math.pow(base, expo2);
System.out.println(base + " ^ " + expo1 + " = " + res1 );
System.out.println(base + " ^ " + expo2 + " = " + res2 );
}
}```

### Output

`2.0 ^ 2.0 = 4.0`

### Java Code

Run
```public class Main
{
public static void main(String[] args) {

double base = 1.5;
// Works only when exponent is positive integer
int expo = 2;
double res = 1.0;

while (expo != 0) {
res *= base;
expo--;
}

System.out.println("Result = " + res);
}
}```

### Output

`Result = 2.25`