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Using Application context everywhere?
...
Y() {yinstance=this;}
}
public class A {
public static void main(String[] p) {
X x = new X();
Y y = new Y();
System.out.println("x:"+X.xinstance+" y:"+Y.yinstance);
System.out.println("x:"+Y.xinstance+" y:"+X.yinstance);
}
}
Let's run the code:
$ javac A.java
$ java...
Why use the 'ref' keyword when passing an object?
... useful too if you want to change the value of an immutable object, e.g. a string. You cannot change the value of a string once it has been created. But by using a ref, you could create a function that changes the string for another one that has a different value.
It is not a good idea to use ref un...
Determine whether JSON is a JSONObject or JSONArray
...
I found better way to determine:
String data = "{ ... }";
Object json = new JSONTokener(data).nextValue();
if (json instanceof JSONObject)
//you have an object
else if (json instanceof JSONArray)
//you have an array
tokenizer is able to return more typ...
What is the difference between `throw new Error` and `throw someObject`?
..."I'm Evil"
throw will terminate the further execution & expose message string on catch the error.
try {
throw "I'm Evil"
console.log("You'll never reach to me", 123465)
} catch (e) {
console.log(e); // I'm Evil
}
Console after throw will never be reached cause of termination.
t...
How to read embedded resource text file
...d an embedded resource (text file) using StreamReader and return it as a string? My current script uses a Windows form and textbox that allows the user to find and replace text in a text file that is not embedded.
...
Prevent dialog dismissal on screen rotation in Android
...ceof YesNoListener)) {
throw new ClassCastException(activity.toString() + " must implement YesNoListener");
}
}
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
return new AlertDialog.Builder(getActivity())
.setTitle(R.strin...
RedirectToAction with parameter
... the URL "/100", while new {groupId = 100} might be interpreted as a query string (as was mentioned above), resulting in the URL "?groupId=100".
– jakobinn
Jan 27 '19 at 12:57
...
How to replace a character with a newline in Emacs?
...m trying to replace a character - say ; - with a new line using replace-string and/or replace-regexp in Emacs.
6 Answ...
Can a C# lambda expression have more than one statement?
...
Sure:
List<String> items = new List<string>();
var results = items.Where(i =>
{
bool result;
if (i == "THIS")
result = true;
else if (i == "T...
How can I read inputs as numbers?
Why are x and y strings instead of ints in the below code?
10 Answers
10
...