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implements Closeable or implements AutoCloseable
...loseable if you are about to implement your own PrintWriter, which handles files or any other resources which needs to be closed.
In your implementation, it is enough to call pw.close(). You should do this in a finally block:
PrintWriter pw = null;
try {
File file = new File("C:\\test.txt");
...
Resolve promises one after another (i.e. in sequence)?
Consider the following code that reads an array of files in a serial/sequential manner. readFiles returns a promise, which is resolved only once all files have been read in sequence.
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What is the purpose of the -nodes argument in openssl?
...n argument, it means OpenSSL will not encrypt the private key in a PKCS#12 file.
To encrypt the private key, you can omit -nodes and your key will be encrypted with 3DES-CBC. To encrypt the key, OpenSSL prompts you for a password and it uses that password to generate an encryption key using the ke...
What is the second parameter of NSLocalizedString()?
...econd parameter is a comment that will automatically appear in the strings file if you use the genstrings command-line utility, which can create the strings file for you by scanning your source code.
The comment is useful for your localizers. For example:
NSLocalizedString(@"Save",@"Title of the S...
Use PHP to create, edit and delete crontab jobs?
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crontab command usage
usage: crontab [-u user] file
crontab [-u user] [ -e | -l | -r ]
(default operation is replace, per 1003.2)
-e (edit user's crontab)
-l (list user's crontab)
-r (delete user's crontab)
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How can I exclude some folders from my Eclipse project?
...rties".
Resource -> Resource Filters.
Add as many exclusion filters for files/folders as you like.
P.S. If your project tree is not updated automatically you may have to press F5 while having input focus in Project Explorer window.
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'ssh-keygen' is not recognized as an internal or external command
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for me, path was C:\Program Files (x86)\Git\usr\bin
– rupinderjeet
Jul 8 '16 at 14:49
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show ...
Correct way to load a Nib for a UIView subclass
...re's a typical example, of loading a xib to use as a table header. In your file YourClass.m
- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section {
return [[NSBundle mainBundle] loadNibNamed:@"TopArea" owner:self options:nil].firstObject;
}
Normally, in the ...
How to git reset --hard a subdirectory?
...he HEAD commit.
As answered by Ajedi32, both checkout forms don't remove files which were deleted in the target revision.
If you have extra files in the working tree which don't exist in HEAD, a git checkout HEAD -- <path> won't remove them.
Note: With git checkout --overlay HEAD -- <pat...
Show filename and line number in grep output
...grep. I am looking for a specific word and I want to grep to print out the file name and line number.
5 Answers
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