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contains(string,substring) returns boolean Description Returns whether string contains substring as a substring. This is equivalent to using Find and then detecting that it does not result in the failure condition listed in the third column of the Find section. However, some languages have a simpler way of expressing this test. Related
PHP has hundreds of base functions and thousands more from extensions. Prior to PHP version 5.3.0, functions are not first-class functions and can only be referenced by their name, whereas PHP 5.3.0 introduces closures. [35] User-defined functions can be created at any time and without being prototyped. [35]
try (FileReader fr = new FileReader (path); BufferedReader br = new BufferedReader (fr)) {// Normal execution path.} catch (IOException ioe) {// Deal with exception. } // Resources in the try statement are automatically closed afterwards. finally { // A finally clause can be included, and will run after the resources in the try statements are ...
Programming languages commonly associated with buffer over-reads include C and C++, which provide no built-in protection against using pointers to access data in any part of virtual memory, and which do not automatically check that reading data from a block of memory is safe; respective examples are attempting to read more elements than ...
For example, a BufferedReader may contain a InputStreamReader, which in turn contains a FileInputStream, and calling close on the BufferedReader in turn closes the InputStreamReader, which in turn closes the FileInputStream, which in turn releases the system file resource. Indeed, the object that directly uses the resource can even be anonymous ...
For example, if there is also a rule E → E * B then the items E → E • + B and E → E • * B will both apply after a string corresponding with E has been read. Therefore, it is convenient to characterize the state of the parser by a set of items, in this case the set { E → E • + B, E → E • * B }.
In lieu of function pointers, functions in PHP can be referenced by a string containing their name. In this manner, normal PHP functions can be used, for example, as callbacks or within function tables. [225] User-defined functions may be created at any time without being prototyped.
Instead, they provide functions for writing a full line that automatically add the native newline sequence, and functions for reading lines that accept any of CR, LF, or CR + LF as a line terminator (see BufferedReader.readLine()). The System.lineSeparator() method can be used to retrieve the underlying line separator. Example: