Java Number Power power(long x, long y)

Description

The power function for long arguments.

License

Open Source License

Parameter

Parameter	Description
x	long
y	long, non-negative

Exception

Parameter	Description
ArithmeticException	an exception

Return

x raised to the y'th power

Declaration

public static long power(long x, long y) 

Method Source Code

//package com.java2s;
/*// www  .j  a  v a  2 s  .c  o m
 Copyright (C) 2017, 2018 Bengt Martensson.

 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; either version 3 of the License, or (at
 your option) any later version.

 This program is distributed in the hope that it will be useful, but
 WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 General Public License for more details.

 You should have received a copy of the GNU General Public License along with
 this program. If not, see http://www.gnu.org/licenses/.
 */

public class Main {
    /**
     * The power function for long arguments.
     *
     * @param x long
     * @param y long, non-negative
     * @return x raised to the y'th power
     *
     * @throws ArithmeticException
     */
    public static long power(long x, long y) {
        if (y < 0)
            throw new ArithmeticException(
                    "power to a negative integer is not sensible here.");
        long r = 1;
        for (long i = 0; i < y; i++)
            r *= x;
        return r;
    }
}

Related

1. power(final long x, final long n, final long p)
2. power(int base, int power)
3. power(int i)
4. power(int val, int numOfPower)
5. power(int x, int n)
6. power2(int power)
7. powerConverter(String _varSymbol)
8. powerLevelToDb(double value)
9. powerLevelToDb0(double value)