1 package interview;
2
3 import java.util.LinkedList;
4 import java.util.List;
5
6 public class ABCDE {
7
8 private boolean ab(boolean a, boolean b){
9 if(a && !b) return false;
10 return true;
11 }
12
13 private boolean bc(boolean b, boolean c){
14 if(b && c) return false;
15 if(!b && !c) return false;
16 return true;
17 }
18
19 private boolean cd(boolean c, boolean d){
20 if(c && !d) return false;
21 if(!c && d) return false;
22 return true;
23 }
24
25 private boolean de(boolean d, boolean e){
26 if(!d && !e) return false;
27 return true;
28 }
29
30 private boolean ead(boolean e, boolean a, boolean d){
31 if(e){
32 if(!a) return false;
33 if(!d) return false;
34 }
35 return true;
36 }
37
38 public boolean trueCondition(boolean a, boolean b, boolean c, boolean d, boolean e){
39 if(ab(a, b) && bc(b, c) && cd(c, d) && de(d, e) && ead(e, a, d)) return true;
40 return false;
41 }
42
43 public boolean trueCondition(List<Boolean> booleans){
44 boolean a, b, c, d, e;
45 a = booleans.get(0);
46 b = booleans.get(1);
47 c = booleans.get(2);
48 d = booleans.get(3);
49 e = booleans.get(4);
50 return trueCondition(a, b, c, d, e);
51 }
52
53 public static List<Boolean> intToBooleanBit(int aInt, int size) {
54 if (aInt < 0) throw new IllegalArgumentException();
55 String bitString = "00000" + Integer.toBinaryString(aInt);
56 bitString = bitString.substring(bitString.length() - size);
57 List<Boolean> booleanList = new LinkedList<Boolean>();
58 for (int i = 0; i < bitString.length(); i++) {
59 booleanList.add(new Boolean(bitString.charAt(i) == '0' ? false : true));
60 }
61 return booleanList;
62 }
63
64 public static void main(String[] args){
65 ABCDE instance = new ABCDE();
66 int pass = 32;
67 int size = 5;
68 for(int i=0; i<pass; i++){
69 List<Boolean> booleanList = intToBooleanBit(i, 5);
70 if(booleanList.size() != 5){
71 System.out.println("bit list size error!");
72 System.exit(-1);
73 }else{
74 if(instance.trueCondition(booleanList)){
75 System.out.println(booleanList.toString());
76 }
77 }
78 }
79 }
80 }
