#include#include using namespace std; int main(){ FXString s = "Hello world!"; s.upper(); cout << s << endl; // Output: HELLO WORLD! return 0; }
#includeThe FXString class has a method `find()` that searches for a substring within the string and returns its index. In this example, the substring "fox" is searched for within the string "The quick brown fox jumps over the lazy dog." and its index is returned. Package library: FOX Toolkit (https://www.fox-toolkit.org/)#include using namespace std; int main(){ FXString s = "The quick brown fox jumps over the lazy dog."; int index = s.find("fox"); cout << "Index of 'fox': " << index << endl; // Output: Index of 'fox': 16 return 0; }