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calling non-static method in static method in Java [duplicate]
...thod using that instance.
e.g,
class demo {
public static void main(String args[]) {
demo d = new demo();
d.add(10,20); // to call the non-static method
}
public void add(int x ,int y) {
int a = x;
int b = y;
int c = a + b;
System.o...
Immutable vs Mutable types
...o
x = 5.0
x += 7.0
print x # 12.0
Doesn't that "mut" x?
Well you agree strings are immutable right? But you can do the same thing.
s = 'foo'
s += 'bar'
print s # foobar
The value of the variable changes, but it changes by changing what the variable refers to. A mutable type can change that wa...
Value cannot be null. Parameter name: source
... what you'd expect. This error message often crops up when your connection string is wrong.
At a guess, you'll need something like this:
<connectionStrings>
<add name="hublisherEntities" connectionString="Data Source=localhost;Initial Catalog=hublisher;Integrated Security=True;" provi...
Format an Integer using Java String Format
I am wondering if it is possible, using the String.format method in Java, to give an integer preceding zeros?
3 Answers
...
How can query string parameters be forwarded through a proxy_pass with nginx?
The above snippet will redirect requests where the url includes the string "service" to another server, but it does not include query parameters.
...
What is the best (idiomatic) way to check the type of a Python variable? [duplicate]
I need to know if a variable in Python is a string or a dict. Is there anything wrong with the following code?
10 Answers
...
How does std::forward work? [duplicate]
... move constructor. You should use something like std::vector<int> or string which has a move constructor.
– Johnny Pauling
Apr 14 '13 at 10:50
2
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Save string to the NSUserDefaults?
How to save a string into the NSUserDefaults ?
15 Answers
15
...
How to copy text to clipboard/pasteboard with Swift
...
If all you want is plain text, you can just use the string property. It's both readable and writable:
// write to clipboard
UIPasteboard.general.string = "Hello world"
// read from clipboard
let content = UIPasteboard.general.string
(When reading from the clipboard, the UI...
Accessing nested JavaScript objects and arays by string path
...is based on some similar code I already had, it appears to work:
Object.byString = function(o, s) {
s = s.replace(/\[(\w+)\]/g, '.$1'); // convert indexes to properties
s = s.replace(/^\./, ''); // strip a leading dot
var a = s.split('.');
for (var i = 0, n = a.length; i &...