# Frequent question: How do you code powers in Java?

Contents

## How do you do powers in Java?

The power function in Java is Math. pow(). It is used to get the power of the first argument to the second argument.

PowerFunc5. java:

1. public class PowerFunc5 {
2. public static void main(String[] args)
3. {
4. double a = 0.57;
5. double b = 0.25;
6. System. out. println(Math. pow(a, b)); // return a^b i.e. 5^2.
7. }
8. }

## How do you do to the power of 2 in Java?

Given a positive integer, write a function to find if it is a power of two or not. 1. A simple method for this is to simply take the log of the number on base 2 and if you get an integer then number is power of 2.

## What is XOR in Java?

JavaObject Oriented ProgrammingProgramming. Bitwise XOR (exclusive or) “^” is an operator in Java that provides the answer ‘1’ if both of the bits in its operands are different, if both of the bits are same then the XOR operator gives the result ‘0’. XOR is a binary operator that is evaluated from left to right.

## How do you write 10 to the power 9 in Java?

Since 109 fits into an int and is also exactly representable as a double , you can do this: int exp = (int) Math. pow(10, 9); BigInteger answer = BigInteger.

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## What are the powers of two?

Because two is the base of the binary numeral system, powers of two are common in computer science. Written in binary, a power of two always has the form 100…000 or 0.00…

Powers of two whose exponents are powers of two.

n 2n 22n (sequence A001146 in the OEIS)
1 2
1 2 4
2 4 16
3 8 256

## What is the value of 2 Power 16?

Answer: 2 to the power of 16 can be expressed as 216 = 2 × 2 × 2 × 2 × … 16 times = 65,536.

## How do you divide in Java?

// Divide a literal by a literal; result is 5 int result = 10 / 2; // Divide a variable by another variable; result is 3 int a = 15; int b = 5; int result = a / b; When dividing integer types, the result is an integer type (see the previous chapter for the exact data type conversions for mathematical operations).

## What is XOR equal to?

XOR represents the inequality function, i.e., the output is true if the inputs are not alike otherwise the output is false. A way to remember XOR is “must have one or the other but not both”. XOR can also be viewed as addition modulo 2.

XOR gate.

Input Output
1 1

## What is XOR in coding?

XOR is the exclusive OR operator in C programming, yet another bitwise logical operator. … In the XOR operation, bits are compared with one another, just like the & and | operators. When two bits are identical, XOR coughs up a 0. When the two bits are different, XOR spits out a 1.

## What is 10 to the power of 9 called?

Positive powers

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Name Power Number
billion (milliard) 9 1,000,000,000
trillion (billion) 12 1,000,000,000,000