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Programmatically obtain the phone number of the Android phone
...(TelephonyManager)mAppContext.getSystemService(Context.TELEPHONY_SERVICE);
String mPhoneNumber = tMgr.getLine1Number();
Required Permission:
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
Caveats:
According to the highly upvoted comments, there are a few caveats t...
In Java, how do I convert a byte array to a string of hex digits while keeping leading zeros? [dupli
... code for making md5 hashes. One part converts the results from bytes to a string of hex digits:
28 Answers
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Using i and j as variables in Matlab
...note the imaginary unit (1j works too). The only exception is when passing strings to the always-slightly-incompatible Symbolic engine. Strange that help 1i and doc 1i don't work though.
– horchler
Jun 2 '13 at 23:45
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How to create dictionary and add key–value pairs dynamically?
..." + lastName] = "some value";
Note that keys (property names) are always strings, and non-string values will be coerced to a string when used as a key. E.g. a Date object gets converted to its string representation:
dict[new Date] = "today's value";
console.log(dict);
// => {
// "Sat Nov...
What does the comma operator , do?
...
I've seen used most in while loops:
string s;
while(read_string(s), s.len() > 5)
{
//do something
}
It will do the operation, then do a test based on a side-effect. The other way would be to do it like this:
string s;
read_string(s);
while(s.len() >...
What is the difference between a mutable and immutable string in C#?
What is the difference between a mutable and immutable string in C#?
15 Answers
15
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UnicodeDecodeError: 'utf8' codec can't decode byte 0x9c
...ote: This will strip out (ignore) the characters in question returning the string without them.
For me this is ideal case since I'm using it as protection against non-ASCII input which is not allowed by my application.
Alternatively: Use the open method from the codecs module to read in the file:
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Benefits of header-only libraries
...is because the Windows API has functions which use either Unicode or ASCII strings and macros/defines which automagically use the correct types based on the project's Unicode settings. If you pass a string across the library boundary that is the wrong type then things break at runtime. Or you may fi...
Get a substring of a char* [duplicate]
... @alexandernst: The problem is that you can't do much with that string data without copying it. If you take a pointer to the section from the original string you need to know the length as it will have no null terminator (Without affecting the original string).
– Go...
Have bash script answer interactive prompts [duplicate]
...
Unfortunately I can't use expect as their are stringent space requirements on the system running this so I can't add extra packages, but piping yes in did the trick, luckily all the prompts only required a 'y' anyway. Thanks.
– TJ L
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