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How to calculate “time ago” in Java?
...public static void main(String args[]) {
System.out.println(toDuration(123));
System.out.println(toDuration(1230));
System.out.println(toDuration(12300));
System.out.println(toDuration(123000));
System.out.println(toDuration(1230000));
System.out.println(toDuration(12300000))...
Why would I ever use push_back instead of emplace_back?
... will be invalid after the call.
std::vector<int> v;
v.emplace_back(123);
v.emplace_back(v[0]); // Produces incorrect results in some compilers
On one compiler, v contains the values 123 and 21 instead of the expected 123 and 123. This is due to the fact that the 2nd call to emplace_back re...
Interview question: Check if one string is a rotation of other string [closed]
...
Here's one using regex just for fun:
boolean isRotation(String s1, String s2) {
return (s1.length() == s2.length()) && (s1 + s2).matches("(.*)(.*)\\2\\1");
}
You can make it a bit simpler if you can use a special delimiter character guaranteed...
How to initialize a struct in accordance with C programming language standards
...tializer to initialize a structure:
MY_TYPE a = { .flag = true, .value = 123, .stuff = 0.456 };
Edit: Other members are initialized as zero: "Omitted field members are implicitly initialized the same as objects that have static storage duration." (https://gcc.gnu.org/onlinedocs/gcc/Designated-In...
在 App Inventor 2 中使用图像 · App Inventor 2 中文网
...用 隐私策略和使用条款 技术支持 service@fun123.cn
I have an error: setOnItemClickListener cannot be used with a spinner, what is wrong?
...ectedListener = object : AdapterView.OnItemSelectedListener {
override fun onItemSelected(parent: AdapterView<*>, view: View, position: Int, id: Long) {
print("onItemSelected position = $position id = $id")
}
override fun onNothingSelected(parent: AdapterView<*>) {
...
What is the difference between parseInt() and Number()?
...
typeof parseInt("123") => number
typeof Number("123") => number
typeof new Number("123") => object (Number primitive wrapper object)
first two will give you better performance as it returns a primitive instead of an object.
...
Basic HTTP and Bearer Token Authentication
...username:password@dev.myapp.com/api/users -H "Authorization: Bearer mytoken123"
^^^^^^^^^^^^^^^^^^
If above one doesn't work, then you have nothing to do with it. So try the following alternates.
You can pass the token under another name. Because you are handling the authorization ...
Why does “return list.sort()” return None, not the list?
...be reordered if we call l.sort():
>>> l = [1, 5, 2341, 467, 213, 123]
>>> l.sort()
>>> l
[1, 5, 123, 213, 467, 2341]
This method has no return value. But what if we try to assign the result of l.sort()?
>>> l = [1, 5, 2341, 467, 213, 123]
>>> r = l.so...
How do I interpret precision and scale of a number in a database?
...efers to the maximum number of digits that are present in the number.
ie 1234567.89 has a precision of 9
Numeric scale refers to the maximum number of decimal places
ie 123456.789 has a scale of 3
Thus the maximum allowed value for decimal(5,2) is 999.99
...