/
GuessNumberGame.java
46 lines (34 loc) · 1.07 KB
/
GuessNumberGame.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
package yg;
/**
* Created by I076057 on 3/24/2018.
*/
public class GuessNumberGame {
private final String secret;
public GuessNumberGame(String secret) {
this.secret = secret;
}
public String guess(String guess) {
int countA = 0;
int countB = 0;
for (int i = 0; i < guess.length(); i++) {
if (matchAType(this.secret, guess, i)) {
countA += 1;
}
if (matchBType(guess, i)) {
countB += 1;
}
}
return new Integer(countA) + "A" + new Integer(countB) + "B";
}
private boolean matchAType(String secret, String guess, int i) {
return secret.charAt(i) == guess.charAt(i);
}
private boolean matchBType(String guess, int i) {
String numberBefore_i = this.secret.substring(0, i);
String numberAfter_i="";
if (i + 1 < guess.length()) {
numberAfter_i = numberBefore_i + secret.substring(i + 1);
}
return (numberBefore_i + numberAfter_i).indexOf(guess.charAt(i)) != -1;
}
}