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How do you find the sum of all the numbers in an array in Java?
I'm having a problem finding the sum of all of the integers in an array in Java. I cannot find any useful method in the Math class for this.
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When to use NSInteger vs. int
When should I be using NSInteger vs. int when developing for iOS? I see in the Apple sample code they use NSInteger (or NSUInteger ) when passing a value as an argument to a function or returning a value from a function.
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Priority queue in .Net [closed]
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You might like IntervalHeap from the C5 Generic Collection Library. To quote the user guide
Class IntervalHeap<T> implements interface IPriorityQueue<T> using an interval heap stored as an array of pairs. The FindMin and
FindMa...
Static fields on a null reference in Java
...ver you access a static variable or method with objects at compile time it converted to Class name. eg:
Main main = null;
System.out.println(main.value);
It will print the value of static variable value because at compile time It will be converted to
System.out.println(Main.value);
Proof:
do...
Multiple github accounts on the same computer?
...rsa AAAA... value is copied to the remote's ~/.ssh/authorized_keys file
Converting your id_rsa/id_rsa.pub key pairs to PEM format
So you want to tame you key files and cut down on some file system cruft? Converting your key pair to a single PEM is easy
$ cd ~/.ssh
$ openssl rsa -in id_rsa -outf...
How can I decode HTML characters in C#?
...s encoded with HTML character entities. Is there anything in .NET that can convert them to plain strings?
10 Answers
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Auto-fit TextView for Android
...(final View v) {
container.removeAllViews();
final int maxWidth = container.getWidth();
final int maxHeight = container.getHeight();
final AutoResizeTextView fontFitTextView = new AutoResizeTextView(MainActivity.this);
final int width = _ra...
Why does this Java code compile?
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tl;dr
For fields, int b = b + 1 is illegal because b is an illegal forward reference to b. You can actually fix this by writing int b = this.b + 1, which compiles without complaints.
For local variables, int d = d + 1 is illegal because d is ...
Can an int be null in Java?
Can an int be null in Java?
15 Answers
15
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Check if at least two out of three booleans are true
An interviewer recently asked me this question: given three boolean variables, a, b, and c, return true if at least two out of the three are true.
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