package Class09_BitOperations;

public class decToBi {

/**

* Converts an integer to a 32-bit binary string

* @param number

* The number to convert

* @param groupSize

* The number of bits in a group

* @return

* The 32-bit long bit string

*/

public String intToString(int number, int groupSize) {

StringBuilder result = new StringBuilder();

for(int i = 31; i >= 0 ; i--) {

int mask = 1 << i;

result.append((number & mask) != 0 ? "1" : "0");

if (i % groupSize == 0)

result.append(" ");

}

result.replace(result.length() - 1, result.length(), "");

return result.toString();

}

public static void main(String[] args) {

decToBi sol = new decToBi();

System.out.println(sol.intToString(5, 4));

System.out.println(sol.intToString(11, 4));

}

}