-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathCeaserCipher.java
More file actions
36 lines (34 loc) · 1.07 KB
/
Copy pathCeaserCipher.java
File metadata and controls
36 lines (34 loc) · 1.07 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
public class CeaserCipher {
public String encryption(int key, String message){
char[] charArray = message.toCharArray();
String EncryptedStr = "";
for(char item : charArray){
int enInt = (int) item + key;
if(enInt > 122 && enInt < 122 + key){
enInt -= 26;
}
if(enInt > 90 && enInt < 97){
enInt -= 26;
}
char enChar = (char) enInt;
EncryptedStr += enChar;
}
return EncryptedStr;
}
public String decryption(int key, String message){
char[] charArray = message.toCharArray();
String DecryptedStr = "";
for(char item : charArray){
int enInt = (int) item - key;
if(enInt < 65 && enInt > 65 - key){
enInt += 26;
}
if(enInt > 90 && enInt < 97){
enInt += 26;
}
char enChar = (char) enInt;
DecryptedStr += enChar;
}
return DecryptedStr;
}
}