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Media-Library/StreamClass.java at master · mayank97/Media-Library · GitHub
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/*
Dewansh Gautam 2015025
Mayank Kumar 2015055
*/
package
lab5
;
import
java
.
io
.*;
public
class
StreamClass
extends
FileWriter
{
public
StreamClass
(
File
file
)
throws
IOException
{
super
(
new
File
(
"EncryptedSong.txt"
));
Encrypt
();
}
public
void
write
(
int
c
)
{
try
{
super
.
write
(
c
);
}
catch
(
IOException
e
)
{
e
.
printStackTrace
();
}
}
public
void
write
(
char
[]
cbuf
,
int
off
,
int
len
)
throws
IOException
{
super
.
write
(
cbuf
,
off
,
len
);
}
public
void
write
(
String
str
,
int
off
,
int
len
)
throws
IOException
{
super
.
write
(
str
,
off
,
len
);
}
public
void
Encrypt
()
{
new
Database
();
File
f1
=
new
File
(
"EncryptedSong.txt"
);
try
{
FileWriter
out
=
new
FileWriter
(
f1
);
String
a
=
"Song,Movie Name,Artist,Year of Release,Genre,Size,Rating,Duration"
;
for
(
int
i
=
0
;
i
<
a
.
length
();
i
++)
{
char
c
=
a
.
charAt
(
i
);
int
temp
= (
int
)
c
;
temp
+=
2
;
c
= (
char
)
temp
;
out
.
write
(
c
);
}
out
.
write
(-
2
);
out
.
write
(
"
\r
\n
"
);
for
(
int
j
=
0
;
j
<
Database
.
countSong
;
j
++)
{
String
s
=
""
;
s
+=
Database
.
song
[
j
].
getTitle
();
s
+=
","
;
s
+=
Database
.
song
[
j
].
getmovieName
();
s
+=
","
;
s
+=
Database
.
song
[
j
].
getArtist
();
s
+=
","
;
s
+=
Database
.
song
[
j
].
getYear
();
s
+=
","
;
s
+=
Database
.
song
[
j
].
getGenre
();
s
+=
","
;
s
+=
Database
.
song
[
j
].
getSize
();
s
+=
","
;
s
+=
Database
.
song
[
j
].
getRating
();
s
+=
","
;
s
+=
Database
.
song
[
j
].
getDuration
();
for
(
int
i
=
0
;
i
<
s
.
length
();
i
++)
{
char
c
=
s
.
charAt
(
i
);
int
temp
= (
int
)
c
;
temp
+=
2
;
c
= (
char
)
temp
;
out
.
write
(
c
);
}
out
.
write
(-
2
);
out
.
write
(
"
\r
\n
"
);
}
out
.
close
();
}
catch
(
IOException
e
)
{
e
.
printStackTrace
();
}
EncryptMovie
();
}
public
void
EncryptMovie
()
{
new
Database
();
File
f1
=
new
File
(
"EncryptedMovie.txt"
);
try
{
FileWriter
out
=
new
FileWriter
(
f1
);
String
a
=
"Movie,Artist,Year of Release,Genre,Size,Rating,Duration,Director,Producer,Certificate"
;
for
(
int
i
=
0
;
i
<
a
.
length
();
i
++)
{
char
c
=
a
.
charAt
(
i
);
int
temp
= (
int
)
c
;
temp
+=
2
;
c
= (
char
)
temp
;
out
.
write
(
c
);
}
out
.
write
(-
2
);
out
.
write
(
"
\r
\n
"
);
for
(
int
j
=
0
;
j
<
Database
.
countMovie
;
j
++)
{
String
s
=
""
;
s
+=
Database
.
movie
[
j
].
getTitle
();
s
+=
","
;
s
+=
Database
.
movie
[
j
].
getArtist
();
s
+=
","
;
s
+=
Database
.
movie
[
j
].
getYear
();
s
+=
","
;
s
+=
Database
.
movie
[
j
].
getGenre
();
s
+=
","
;
s
+=
Database
.
movie
[
j
].
getSize
();
s
+=
","
;
s
+=
Database
.
movie
[
j
].
getRating
();
s
+=
","
;
s
+=
Database
.
movie
[
j
].
getDuration
();
s
+=
","
;
s
+=
Database
.
movie
[
j
].
getDirector
();
s
+=
","
;
s
+=
Database
.
movie
[
j
].
getProducer
();
s
+=
","
;
s
+=
Database
.
movie
[
j
].
getCertification
();
for
(
int
i
=
0
;
i
<
s
.
length
();
i
++)
{
char
c
=
s
.
charAt
(
i
);
int
temp
= (
int
)
c
;
temp
+=
2
;
c
= (
char
)
temp
;
out
.
write
(
c
);
}
out
.
write
(-
2
);
out
.
write
(
"
\r
\n
"
);
}
out
.
close
();
}
catch
(
IOException
e
)
{
e
.
printStackTrace
();
}
Decrypt
();
}
public
void
Decrypt
()
{
FileReader
in
=
null
;
FileWriter
out
=
null
;
File
f1
=
new
File
(
"DecryptedSong.txt"
);
try
{
in
=
new
FileReader
(
"EncryptedSong.txt"
);
out
=
new
FileWriter
(
f1
);
int
c
;
while
((
c
=
in
.
read
()) != -
1
)
{
if
((
char
)
c
==
'?'
)
{
out
.
write
(
"
\r
\n
"
);
}
else
{
c
-=
2
;
char
a
= (
char
)
c
;
out
.
write
(
a
);
}
}
out
.
close
();
}
catch
(
IOException
e
)
{
e
.
printStackTrace
();
}
DecryptMovie
();
}
public
void
DecryptMovie
()
{
FileReader
in
=
null
;
FileWriter
out
=
null
;
File
f2
=
new
File
(
"DecryptedMovie.txt"
);
try
{
in
=
new
FileReader
(
"EncryptedMovie.txt"
);
out
=
new
FileWriter
(
f2
);
int
c
;
while
((
c
=
in
.
read
()) != -
1
)
{
if
((
char
)
c
==
'?'
)
{
out
.
write
(
"
\r
\n
"
);
}
else
{
c
-=
2
;
char
a
= (
char
)
c
;
out
.
write
(
a
);
}
}
out
.
close
();
}
catch
(
IOException
e
)
{
e
.
printStackTrace
();
}
}
}
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