-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathIntegerToRoman.java
More file actions
71 lines (70 loc) · 1.46 KB
/
Copy pathIntegerToRoman.java
File metadata and controls
71 lines (70 loc) · 1.46 KB
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
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
public class RomanNumber {
//I（1）、V（5）、X（10）、L（50）、C（100）、D（500）和M（1000）
// 134 --> CXXXIV
// 9 --> IX
public static String intToRoman(int num){
StringBuilder romanNum = new StringBuilder();
int remNum = num;
if (remNum / 1000 > 0) {
for (int i = 0; i < remNum / 1000; i++)
romanNum.append("M");
remNum = remNum % 1000;
}
if (remNum / 100 == 9) {
romanNum.append("CM");
remNum = remNum % 100;
}else {
if (remNum / 500 > 0) {
romanNum.append("D");
remNum = remNum % 500;
}
if (remNum / 100 > 0) {
int rs = remNum / 100;
if (rs == 4) {
romanNum.append("CD");
}else {
for (int i = 0; i < rs; i++) {
romanNum.append("C");
}
}
remNum = remNum % 100;
}
}
if (remNum / 10 == 9) {
romanNum.append("XC");
remNum = remNum % 10;
}else {
if (remNum / 50 > 0) {
romanNum.append("L");
remNum = remNum % 50;
}
if (remNum / 10 > 0) {
int rs = remNum / 10;
if (rs == 4) {
romanNum.append("XL");
}else {
for (int i = 0; i < rs; i++) {
romanNum.append("X");
}
}
remNum = remNum % 10;
}
}
if (remNum == 9) {
romanNum.append("IX");
}else {
if (remNum / 5 > 0) {
romanNum.append("V");
remNum = remNum % 5;
}
if (remNum == 4) {
romanNum.append("IV");
}else {
for (int i = 0; i < remNum; i++) {
romanNum.append("I");
}
}
}
return romanNum.toString();
}
}