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bran.harvey-chadwi
Java Assignment 3
Commits
51ae5ee1
Commit
51ae5ee1
authored
Nov 29, 2018
by
Karrthus
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Completed futher work
parent
5bcb98a6
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-16
AssessmentPartThree.java
src/AssessmentPartThree.java
+70
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src/AssessmentPartThree.java
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51ae5ee1
public
class
AssessmentPartThree
{
// The simplest form of encryption is the rotation cipher (also known as Caeser's Cipher)
// An offset value is chosen to encrypt a message. Each letter is replaced by the
// letter that that number of places away from it.
...
...
@@ -8,6 +9,8 @@ public class AssessmentPartThree {
// - so a becomes b, b becomes c, etc
// If a value of -2 is chosen a becomes y, b becomes z and so on
public
char
enryptedCharacter
(
char
theChar
,
int
theOffset
)
{
// 05 - encryptedCharacter
...
...
@@ -17,6 +20,7 @@ public class AssessmentPartThree {
// Lower case characters remain lower case, upper case remain upper case
// Any other characters are returned unchanged
String
lowerbet
=
"abcdefghijklmnopqrstuvwxyz"
;
String
capitalbet
=
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
;
...
...
@@ -30,29 +34,79 @@ public class AssessmentPartThree {
return
newnumber
;
}
if
(
theChar
==
capitalbet
.
charAt
(
i
))
{
char
newnumber
=
capitalbet
.
charAt
(
theOffset
+
i
);
return
newnumber
;
}
char
newnum
=
lowerbet
.
charAt
(
theOffset
+
i
);
return
newnum
;
}
char
newnumber
=
theChar
;
return
newnumber
;
char
newnumber
=
theChar
;
return
newnumber
;
}
}
public
String
encryptedString
(
String
theMessage
,
int
theOffset
)
{
// 06 - encryptedMessage
// Complete this method so that it uses encryptedCharacter to
// return the encrypted version of theMessage using theOffset
{
// 06 - encryptedMessage
// Complete this method so that it uses encryptedCharacter to
// return the encrypted version of theMessage using theOffset
{
// 06 - encryptedMessage
// Complete this method so that it uses encryptedCharacter to
// return the encrypted version of theMessage using theOffset
String
alphabeto
=
"abcdefghijklmnopqrstuvwxyz"
;
String
CAPSalphabet
=
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
;
char
newnum
=
0
;
char
[]
theChar
=
theMessage
.
toCharArray
();
for
(
int
x
=
0
;
x
<
theMessage
.
length
();
x
++)
{
for
(
int
i
=
0
;
i
<
alphabeto
.
length
();
i
++)
{
if
(
theChar
[
x
]
==
alphabeto
.
charAt
(
i
))
{
newnum
=
alphabeto
.
charAt
(
theOffset
+
i
);
}
if
(
theChar
[
x
]
==
CAPSalphabet
.
charAt
(
i
))
{
newnum
=
CAPSalphabet
.
charAt
(
theOffset
+
i
);
}
}
theChar
[
x
]
=
newnum
;
System
.
out
.
println
(
theChar
[
x
]);
}
String
output
=
Arrays
.
toString
(
theChar
);
System
.
out
.
println
(
output
);
return
"Encryptred message"
;
}
}
}
}
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