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Difference between java.io.PrintWriter and java.io.BufferedWriter?
...fference to be aware of is that it swallows exceptions.
You can call checkError later on to see whether any errors have occurred, but typically you'd use PrintWriter for things like writing to the console - or in "quick 'n dirty" apps where you don't want to be bothered by exceptions (and where lon...
Xml serialization - Hide null values
...hing was that the creation of the XmlSerializer instance failed (due to an error when reflecting the type) until I removed the XmlAttribute from the nullable int-property.
– Matze
May 3 '13 at 11:52
...
How do I concatenate two text files in PowerShell?
...hell converts the type command to Get-Content, which means you will get an error when using the type command in PowerShell because the Get-Content command requires a comma separating the files. The same command in PowerShell would be
Get-Content file1.txt,file2.txt,file3.txt | Set-Content files.txt...
How to get the position of a character in Python?
...the search string isn't found. find() returns -1 and index() raises ValueError.
Using find()
>>> myString = 'Position of a character'
>>> myString.find('s')
2
>>> myString.find('x')
-1
Using index()
>>> myString = 'Position of a character'
>>> my...
Insert HTML with React Variable Statements (JSX)
...
To avoid linter errors, I use it like this:
render() {
const props = {
dangerouslySetInnerHTML: { __html: '<br/>' },
};
return (
<div {...props}></div>
);
}
...
Meaning of tilde in Linux bash (not home directory)
...e expansion is done, ~x means the home directory of user 'x' (and it is an error if user 'x' does not exist).
It might be worth mentioning that:
cd ~- # Change to previous directory ($OLDPWD)
cd ~+ # Change to current directory ($PWD)
I can't immediately find a use for '~+', unless...
Putting a simple if-then-else statement on one line [duplicate]
...ou can't omit the else when using the ternary form, it results in a syntax error, but you could do a normal if in one line , I updated the samples to illustrate.
– cmsjr
Feb 15 '17 at 3:42
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How do I use grep to search the current directory for all files having the a string “hello” yet disp
...
grep -l hello **/*.{h,cc}
You might want to shopt -s nullglob to avoid error messages if there are no .h or no .cc files.
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Avoid passing null as the view root (need to resolve layout parameters on the inflated layout's root
...ing View.inflate instead of inflating from a layoutinflater makes the lint error disappear.
Thought I'd post this here since this thread is at the top of the Google Search...
view = View.inflate(context,R.layout.custom_layout,null);
...
Case-insensitive search
...t to say "no measures"): s = 'a[b'; r = new RegExp(s) results in a syntax error (unterminated character class)
– glenn jackman
Jan 26 '10 at 17:47
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