ca tools

				package es.sing.util;
				
				public class BitArray{
					static int codes[]=new int[31];
				
					static{
						codes[0]=1;
						codes[1]=2;
						for (int i=2;i							codes[i]=codes[i-1]*2;
						}
					}
				    
					public static boolean isActive(int bitArray, int index){
						return (bitArray & codes[index])!=0;
					}
				
					public static void main(String args[]){
						int bitA=Integer.parseInt("010010",2);
						for(int i=0;i							System.out.println(isActive(bitA,i));
						}
					}
				};