Programming Articles - Page 2062 of 3363

In this article, we will learn to get all children of a process using Process API in Java 9. First, we will learn about Process API and its methods, ProcessHandle interface and after that we will use the children method of the ProcessHandle interface. Process API In Java, the Process API, we can perform any operation regarding a process. The Process class provides methods for performing input on the processes, performing output to the processes, waiting for the process to complete, finding child and parent processes of the currently running process, getting any information about a process, and destroying the process. The ... Read More

In Java 9, Process API supports an easy way to get much information about a process. ProcessHandle interface can identify and provide the control of native processes and method to check processes liveness and destroy the processes whereas ProcessHandle.Info interface can give an Information snapshot of a process. We need to destroy a process by using the destroy() method of the ProcessHandle interface.In the below example, we need to terminate a process by using the ProcessHandle interface.Exampleimport java.io.File; import java.io.IOException; import java.util.Objects; public class DestroyProcessTest {    public static void main(String[] args) throws InterruptedException {       System.out.println("---------------------------");       ... Read More

In Java 9, the ofInstant() method has introduced for conversion. It is a static method of LocalDate, LocalTime, and LocalDateTime classes. This method converts java.time.Instant object to LocalDate that requires a time zone in the form of java.time.ZoneId.Syntaxpublic static LocalTime ofInstant(Instant instant, ZoneId zone) public static LocalDate ofInstant(Instant instant, ZoneId zone) public static LocalDateTime ofInstant(Instant instant, ZoneId zone)Exampleimport java.time.LocalDate; import java.time.LocalTime; import java.time.LocalDateTime; import java.time.Instant; import java.time.ZoneId; public class OfInstantMethodTest {    public static void main(String args[]) { Instant instant = Instant.parse("2020-02-05T02:35:15.245Z"); System.out.println("Instant: " + instant); ... Read More

In this article, we will learn about the use of the toEpochSecond() method in Java 9. First, we will learn about the LocalDate class, its methods, then we will know about the Epoch Time and the toEpochSecond() method with its uses and example in Java. LocalDate Class The LocalDate class is a part of java.time package. LocalDate class represents a date without a time-zone in the ISO-8601 calendar system, such as 2020-10-14. This class represents a date in the format yyyy-MM-dd. The following are some of the common methods of the LocalDate Class getDayOfMonth(): This ... Read More

In this article we will be discussing the working, syntax and examples of forward_list::clear() and forward_list::erase_after() functions in C++.What is a Forward_list in STL?Forward list are sequence containers that allow constant time insert and erase operations anywhere within the sequence. Forward lists are implemented as singly linked lists. The ordering is kept by the association to each element of a link to the next element in the sequence.What is forward_list::clear()?forward_list::clear() is an inbuilt function in C++ STL which is declared in header file. clear() is used when we have to remove all the elements of the forward list at ... Read More

In this article we will be discussing the working, syntax and examples of list::push_front() and list::push_back() functions in C++ STL.What is a List in STL?List is a data structure that allows constant time insertion and deletion anywhere in sequence. Lists are implemented as doubly linked lists. Lists allow non-contiguous memory allocation. List performs better insertion extraction and moving of element in any position in container than array, vector and deque. In List the direct access to the element is slow and list is similar to forward_list, but forward list objects are single linked lists and they can only be iterated ... Read More

In this article we will be discussing the working, syntax and examples of list::pop_front() and list::pop_back() functions in C++ STL.What is a List in STL?List is a data structure that allows constant time insertion and deletion anywhere in sequence. Lists are implemented as doubly linked lists. Lists allow non-contiguous memory allocation. List performs better insertion extraction and moving of element in any position in container than array, vector and deque. In List the direct access to the element is slow and list is similar to forward_list, but forward list objects are single linked lists and they can only be iterated ... Read More

In this article we will be discussing the working, syntax and examples of list::front() and list::back() functions in C++ STL.What is a List in STL?List is a data structure that allows constant time insertion and deletion anywhere in sequence. Lists are implemented as doubly linked lists. Lists allow non-contiguous memory allocation. List performs better insertion extraction and moving of element in any position in container than array, vector and deque. In List the direct access to the element is slow and list is similar to forward_list, but forward list objects are single linked lists and they can only be iterated ... Read More

Internationalization enhancements in Java 9 include Unicode 8.0, UTF-8 properties files and enabling CLDR locale data by default. Java 9 supports up to Unicode 8.0 standards with 10, 555 characters, 29 scripts, and 42 blocks.In Java 9, the properties files are loaded in UTF-8 encoding. By default, reading an input stream throws MalformedInputException or UnmappableCharacterException. In this case, PropertyResourceBundle instance reset to a state before the exception, re-reads the input stream in ISO-8859-1, and continues reading.If PropertyResourceBundle.encoding has set to either ISO-8859-1 or UTF-8, then PropertyResourceBundle instance read an input stream in that encoding, and throw an exception if encountering an invalid sequence. The system property read ... Read More

In this article we will be discussing the working, syntax and examples of list::splice() function in C++ STL.What is a List in STL?List is a data structure that allows constant time insertion and deletion anywhere in sequence. Lists are implemented as doubly linked lists. Lists allow non-contiguous memory allocation. List performs better insertion extraction and moving of element in any position in container than array, vector and deque. In List the direct access to the element is slow and list is similar to forward_list, but forward list objects are single linked lists and they can only be iterated forwards.What is ... Read More