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Why does this code using random strings print “hello world”?

...e share your code. I would greatly appreciate it. public static void main(String[] args) { long time = System.currentTimeMillis(); generate("stack"); generate("over"); generate("flow"); generate("rulez"); System.out.println("Took " + (System.currentTimeMillis() - time) + " ...
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How to display count of notifications in app launcher icon [duplicate]

...iz launcher public static void setBadge(Context context, int count) { String launcherClassName = getLauncherClassName(context); if (launcherClassName == null) { return; } Intent intent = new Intent("android.intent.action.BADGE_COUNT_UPDATE"); intent.putExtra("badge_count...
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What is move semantics?

...nderstand move semantics with example code. Let's start with a very simple string class which only holds a pointer to a heap-allocated block of memory: #include <cstring> #include <algorithm> class string { char* data; public: string(const char* p) { size_t size =...
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Replace non-ASCII characters with a single space

...code will insert multiple blanks per character if you feed it a UTF-8 byte string. – Mark Ransom Nov 19 '13 at 19:13 ...
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Pick any kind of file via an Intent in Android

...y solution which works on Samsung and other devices: public void openFile(String mimeType) { Intent intent = new Intent(Intent.ACTION_GET_CONTENT); intent.setType(mimeType); intent.addCategory(Intent.CATEGORY_OPENABLE); // special intent for Samsung file manager ...
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Test whether string is a valid integer

...aining it so I can learn a little? I gather it reads, "At the start of the string (^), a minus sign (-) is optional (?), followed by any number of characters between zero and 9, inclusive" ... and what then might the +$ mean? Thanks. – Richard T Feb 5 '10 at 21...
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strdup() - what does it do in C?

...ed to the abbreviated way in which C and UNIX assigns words, it duplicates strings :-) Keeping in mind it's actually not part of the ISO C standard itself(a) (it's a POSIX thing), it's effectively doing the same as the following code: char *strdup(const char *src) { char *dst = malloc(strlen (...
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Count the number of occurrences of a string in a VARCHAR field?

... The ROUND here is unnecessary. assume a string of length x with n occurrences of'value. LENGTH(description) - LENGTH( REPLACE ( description, "value", "") ) will always give you n*length("value"), diving that by length of value will always leave a whole number n. N...
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How to create a memory leak in Java?

...eClass { static final ArrayList list = new ArrayList(100); } Calling String.intern() on lengthy String String str=readString(); // read lengthy string any source db,textbox/jsp etc.. // This will place the string in memory pool from which you can't remove str.intern(); (Unclosed) open strea...
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Is modern C++ becoming more prevalent? [closed]

...ated C++ and Stroustrup's new textbook. So we don't learn char* then std::strings. It's an interesting lesson in how long it takes for "legacy" methods to be replaced, especially when they have a track record of effectiveness. ...