import java.util.ArrayList;

import java.util.Arrays;

/**

*

* Program takes in command-line arguments and converts them from base ten to base two.

*

* 1) To run this program, compile the files using javac MachineAssignment.java

* 2) Then run "java MachineAssignment value value value"

*

*/

public class MachineAssignment {

public static void main(String[] args) {

prettyPrint(Convert(args), args);

}

/**

*

* Function converts Base 10 to Base 2 by taking the value passed, multiplying by by two.

* If the currentDouble is less then 1, we add a 0 to result. If the currentDouble is greater than or equal to 1, we add a 1 to result.

*

* @param list - array of base 10 numbers.

* @return - ArrayList of base 2 numbers

*/

private static ArrayList<String> Convert(String[] list){

int fractionalLength = 8;

ArrayList<String> data = new ArrayList<>();

String result = "0.";

double[] doubleArray = Arrays.stream(list).mapToDouble(Double::parseDouble).toArray(); //converting String Array to Double Array

for (int i = 0; i < doubleArray.length; i++) {

double currentDouble = doubleArray[i];

while ( result.length() != fractionalLength ){

currentDouble *= 2;

if (currentDouble < 1 ){

result += "0";

} else if (currentDouble >= 1 ){

result += "1";

currentDouble -= 1;

}

}

data.add(result);

result = "0.";

}

return data;

}

/**

* Prints out the results displaying base 10 and base 2 side by side.

*

* @param baseTen - ArrayList of base ten

* @param baseTwo - Array of base two

*/

private static void prettyPrint(ArrayList<String> baseTen, String[] baseTwo){

System.out.println("|\tBase 10\t|\tBase 2\t|\n| :--------\t| :--------\t|");

for (int i = 0; i < baseTen.size(); i++) {

System.out.printf("|%20s\t|%n", baseTwo[i] + "\t| " + baseTen.get(i) );

}

}

}