Why do we have to add forward slash in the file directory to differentiate between directory and files?
Inside the For loop:
Why do I have to add a forward slash after the directory name?
For example:
for(int i = 0; i<s.length; i++){
File f = new File(dirname + "/" + s[i] );
// Why to add "/" after dirname(i.e directory name)
if(f.isDirectory()){
System.out.println(s[i] + " is Directory" );
}else{
System.out.println(s[i] + " is File");
}
}
If I remove backslash "/" after dirname:
i.e In First Code
File f = new File(dirname + "/" + s[i] );
When I remove "/".
In the Second code:
File f = new File(dirname + s[i] );
It won't differentiate between Directory and File. All the Files inside will be considered to be the file.
After I add a backslash, it will be okay. And it will differentiate between Directory and File. Why is that?
Why do I have to add "/". The program is meant to look inside the file without adding "/".
java eclipse file directory backslash
edited Jan 3 at 11:47
Andy Turner
84k983143
asked Jan 3 at 11:35
sophinsophin
314
add a comment |
Inside the For loop:
Why do I have to add a forward slash after the directory name?
For example:
for(int i = 0; i<s.length; i++){
File f = new File(dirname + "/" + s[i] );
// Why to add "/" after dirname(i.e directory name)
if(f.isDirectory()){
System.out.println(s[i] + " is Directory" );
}else{
System.out.println(s[i] + " is File");
}
}
If I remove backslash "/" after dirname:
i.e In First Code
File f = new File(dirname + "/" + s[i] );
When I remove "/".
In the Second code:
File f = new File(dirname + s[i] );
It won't differentiate between Directory and File. All the Files inside will be considered to be the file.
After I add a backslash, it will be okay. And it will differentiate between Directory and File. Why is that?
Why do I have to add "/". The program is meant to look inside the file without adding "/".
java eclipse file directory backslash
edited Jan 3 at 11:47
Andy Turner
84k983143
asked Jan 3 at 11:35
sophinsophin
314
We can't say until we know what variables such assanddirnameare.
– Kilves
Jan 3 at 11:38
add a comment |
Inside the For loop:
Why do I have to add a forward slash after the directory name?
For example:
for(int i = 0; i<s.length; i++){
File f = new File(dirname + "/" + s[i] );
// Why to add "/" after dirname(i.e directory name)
if(f.isDirectory()){
System.out.println(s[i] + " is Directory" );
}else{
System.out.println(s[i] + " is File");
}
}
If I remove backslash "/" after dirname:
i.e In First Code
File f = new File(dirname + "/" + s[i] );
When I remove "/".
In the Second code:
File f = new File(dirname + s[i] );
It won't differentiate between Directory and File. All the Files inside will be considered to be the file.
After I add a backslash, it will be okay. And it will differentiate between Directory and File. Why is that?
Why do I have to add "/". The program is meant to look inside the file without adding "/".
java eclipse file directory backslash
edited Jan 3 at 11:47
Andy Turner
84k983143
asked Jan 3 at 11:35
sophinsophin
314
Inside the For loop:
Why do I have to add a forward slash after the directory name?
For example:
for(int i = 0; i<s.length; i++){
File f = new File(dirname + "/" + s[i] );
// Why to add "/" after dirname(i.e directory name)
if(f.isDirectory()){
System.out.println(s[i] + " is Directory" );
}else{
System.out.println(s[i] + " is File");
}
}
If I remove backslash "/" after dirname:
i.e In First Code
File f = new File(dirname + "/" + s[i] );
When I remove "/".
In the Second code:
File f = new File(dirname + s[i] );
It won't differentiate between Directory and File. All the Files inside will be considered to be the file.
After I add a backslash, it will be okay. And it will differentiate between Directory and File. Why is that?
Why do I have to add "/". The program is meant to look inside the file without adding "/".
java eclipse file directory backslash
java eclipse file directory backslash
edited Jan 3 at 11:47
Andy Turner
84k983143
asked Jan 3 at 11:35
sophinsophin
314
edited Jan 3 at 11:47
Andy Turner
84k983143
asked Jan 3 at 11:35
sophinsophin
314
edited Jan 3 at 11:47
Andy Turner
84k983143
edited Jan 3 at 11:47
Andy Turner
84k983143
edited Jan 3 at 11:47
Andy Turner
84k983143
84k983143
asked Jan 3 at 11:35
sophinsophin
314
asked Jan 3 at 11:35
sophinsophin
314
asked Jan 3 at 11:35
sophinsophin
314
314
We can't say until we know what variables such assanddirnameare.
– Kilves
Jan 3 at 11:38
add a comment |
We can't say until we know what variables such assanddirnameare.
– Kilves
Jan 3 at 11:38
We can't say until we know what variables such as
s and dirname are.– Kilves
Jan 3 at 11:38
We can't say until we know what variables such as
s and dirname are.– Kilves
Jan 3 at 11:38
add a comment |
2 Answers
2
active
oldest
votes
Including and omitting the / mean that the file points to a different path. For example, "foo/bar" and "foobar" are different paths, which would point to different objects in the file system:
Parent directory
+-- foobar "foobar"
+-- foo
+-- bar "foo/bar"
Not being a directory is not the same thing as being a file. So, most likely (we don't know what's in your file system), it's not a directory because it doesn't exist.
You should check if (!f.exists()) (or similar) first:
if (!f.exists()) System.out.println("Doesn't exist");
else if (f.isDirectory()) ... etc
Also, note that you shouldn't add a / anyway - use the two-arg constructor:
File f = new File(dirname, s[i] );
answered Jan 3 at 11:44
Andy TurnerAndy Turner
84k983143
Thanks for the answer. It really helped me!!
– sophin
Jan 6 at 4:46
add a comment |
Slash symbol is a file separator. This is used to separate the directories from the files.
If you are to build your string, the file name will be:
Pictures/my-dog.png
Here, you will see that there is a directory named "Picture" and a filename "my-dog.png".
If you were to remove the slash, it will look like a long filename:
Picturesmy-dog.png
answered Jan 3 at 12:31
KaNa0011KaNa0011
615615
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
Including and omitting the / mean that the file points to a different path. For example, "foo/bar" and "foobar" are different paths, which would point to different objects in the file system:
Parent directory
+-- foobar "foobar"
+-- foo
+-- bar "foo/bar"
Not being a directory is not the same thing as being a file. So, most likely (we don't know what's in your file system), it's not a directory because it doesn't exist.
You should check if (!f.exists()) (or similar) first:
if (!f.exists()) System.out.println("Doesn't exist");
else if (f.isDirectory()) ... etc
Also, note that you shouldn't add a / anyway - use the two-arg constructor:
File f = new File(dirname, s[i] );
answered Jan 3 at 11:44
Andy TurnerAndy Turner
84k983143
Thanks for the answer. It really helped me!!
– sophin
Jan 6 at 4:46
add a comment |
Including and omitting the / mean that the file points to a different path. For example, "foo/bar" and "foobar" are different paths, which would point to different objects in the file system:
Parent directory
+-- foobar "foobar"
+-- foo
+-- bar "foo/bar"
Not being a directory is not the same thing as being a file. So, most likely (we don't know what's in your file system), it's not a directory because it doesn't exist.
You should check if (!f.exists()) (or similar) first:
if (!f.exists()) System.out.println("Doesn't exist");
else if (f.isDirectory()) ... etc
Also, note that you shouldn't add a / anyway - use the two-arg constructor:
File f = new File(dirname, s[i] );
answered Jan 3 at 11:44
Andy TurnerAndy Turner
84k983143
Thanks for the answer. It really helped me!!
– sophin
Jan 6 at 4:46
add a comment |
Including and omitting the / mean that the file points to a different path. For example, "foo/bar" and "foobar" are different paths, which would point to different objects in the file system:
Parent directory
+-- foobar "foobar"
+-- foo
+-- bar "foo/bar"
Not being a directory is not the same thing as being a file. So, most likely (we don't know what's in your file system), it's not a directory because it doesn't exist.
You should check if (!f.exists()) (or similar) first:
if (!f.exists()) System.out.println("Doesn't exist");
else if (f.isDirectory()) ... etc
Also, note that you shouldn't add a / anyway - use the two-arg constructor:
File f = new File(dirname, s[i] );
answered Jan 3 at 11:44
Andy TurnerAndy Turner
84k983143
Including and omitting the / mean that the file points to a different path. For example, "foo/bar" and "foobar" are different paths, which would point to different objects in the file system:
Parent directory
+-- foobar "foobar"
+-- foo
+-- bar "foo/bar"
Not being a directory is not the same thing as being a file. So, most likely (we don't know what's in your file system), it's not a directory because it doesn't exist.
You should check if (!f.exists()) (or similar) first:
if (!f.exists()) System.out.println("Doesn't exist");
else if (f.isDirectory()) ... etc
Also, note that you shouldn't add a / anyway - use the two-arg constructor:
File f = new File(dirname, s[i] );
answered Jan 3 at 11:44
Andy TurnerAndy Turner
84k983143
answered Jan 3 at 11:44
Andy TurnerAndy Turner
84k983143
answered Jan 3 at 11:44
Andy TurnerAndy Turner
84k983143
answered Jan 3 at 11:44
Andy TurnerAndy Turner
84k983143
84k983143
Thanks for the answer. It really helped me!!
– sophin
Jan 6 at 4:46
add a comment |
Thanks for the answer. It really helped me!!
– sophin
Jan 6 at 4:46
Thanks for the answer. It really helped me!!
– sophin
Jan 6 at 4:46
Thanks for the answer. It really helped me!!
– sophin
Jan 6 at 4:46
add a comment |
Slash symbol is a file separator. This is used to separate the directories from the files.
If you are to build your string, the file name will be:
Pictures/my-dog.png
Here, you will see that there is a directory named "Picture" and a filename "my-dog.png".
If you were to remove the slash, it will look like a long filename:
Picturesmy-dog.png
answered Jan 3 at 12:31
KaNa0011KaNa0011
615615
add a comment |
Slash symbol is a file separator. This is used to separate the directories from the files.
If you are to build your string, the file name will be:
Pictures/my-dog.png
Here, you will see that there is a directory named "Picture" and a filename "my-dog.png".
If you were to remove the slash, it will look like a long filename:
Picturesmy-dog.png
answered Jan 3 at 12:31
KaNa0011KaNa0011
615615
add a comment |
Slash symbol is a file separator. This is used to separate the directories from the files.
If you are to build your string, the file name will be:
Pictures/my-dog.png
Here, you will see that there is a directory named "Picture" and a filename "my-dog.png".
If you were to remove the slash, it will look like a long filename:
Picturesmy-dog.png
answered Jan 3 at 12:31
KaNa0011KaNa0011
615615
Slash symbol is a file separator. This is used to separate the directories from the files.
If you are to build your string, the file name will be:
Pictures/my-dog.png
Here, you will see that there is a directory named "Picture" and a filename "my-dog.png".
If you were to remove the slash, it will look like a long filename:
Picturesmy-dog.png
answered Jan 3 at 12:31
KaNa0011KaNa0011
615615
answered Jan 3 at 12:31
KaNa0011KaNa0011
615615
answered Jan 3 at 12:31
KaNa0011KaNa0011
615615
answered Jan 3 at 12:31
KaNa0011KaNa0011
615615
615615
add a comment |
add a comment |
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We can't say until we know what variables such as
sanddirnameare.– Kilves
Jan 3 at 11:38