Question

Coding Type Question
Marks : 20 Negative Marks : 0
Given two integers a and b, multiply a with 2, b times and print the resultant value.
Input format
Two space-separated integers a and b
Output format
Resultant value
Sample testcases
Input 1
Output 1
5 3
40

in java​

Answer 1

Answer:

import java.util.Scanner;

import java.util.*;

import java.lang.Math;

 

public class Main {

/* Driver program */

public static void main(String[] args) {

 Scanner in = new Scanner(System.in);

   System.out.print("Input first number: ");

// take the first number;

 int a= in.nextInt();

  System.out.print("Input second number: ");

// Take the second number

 int b= in.nextInt();

// Returns 2 raised to power b

double c = Math.pow(2, b);

 

 double r =(double)a * c;

  System.out.println(r);

}

}

Explanation:

• The above program will take two integers a and b, multiply a with 2, b times and print the resultant value r .
• The Math.pow(2, b) will returns the value of 2 raised to power b.