Java tutorial
//package com.java2s; import java.util.ArrayList; import java.util.Collections; public class Main { /** * @param integer The integer to be converted * @param n the number of bits of the output binary * @return Array of binary number where arr(0) is the most significant */ public static ArrayList<Boolean> decimalToBinary(Integer integer, int n) { ArrayList<Boolean> result = new ArrayList(); if (integer == 0) { result.add(false); for (int i = 0; i < n - 1; i++) result.add(false); Collections.reverse(result); return result; } while (integer != 0) { if (integer % 2 != 0) result.add(true); else result.add(false); integer = integer / 2; } // Fill the rest of the bits for (int i = 0; i < (n - result.size()); i++) result.add(false); Collections.reverse(result); return result; } }