Please explain if the following code is actually correct. If the following code correct, please explain why the code works and is also correct.

Chapter 5 Exercise 37: Java Programming * * (Decimal to binary) Write a program that prompts the user to enter a * decimal integer and displays its corresponding binary value. Dont use * Javas Integer .toBinaryString(int) in this program./* Note : if access specifier is specified as public then file name and class name should be same and main should be within that class only */

Programming Exercise Solution

import java.util.*;

import java.lang.*;

import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */

class Dec_to_bin

{

public static void main (String[] args)

{

Scanner in = new Scanner(System.in);

//Take User input from keyboard

System.out.println("Enter decimal number: ");

int num = in.nextInt();

int bin =0;

int i=0;

while (num != 0)

{

int d = num % 2;

bin=bin+(d*((int)Math.pow(10,i)));

num /= 2;

i++;

}

System.out.print(" Binary representation is:");

System.out.print(bin);

System.out.println();

}

}