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The HTML DOM Location href property returns/sets the string corresponding to the URL path.SyntaxFollowing is the syntax −Returning value of the href propertylocation.hrefValue of the href property setlocation.href = hrefExampleLet us see an example for Location href property − Live Demo Location href form { width:70%; margin: 0 auto; text-align: center; } * { padding: 2px; margin:5px; } input[type="button"] { border-radius: 10px; } Location-href Current URL: var divDisplay = document.getElementById("divDisplay"); var urlSelect = document.getElementById("urlSelect"); function gethref(){ divDisplay.textContent = 'URL Path: '+location.href; } OutputThis will produce the following output −Before clicking ‘Get href’ button −After clicking ‘Get href’ button −
To check if the second item is selected i.e. index 1, use the method isSelectedIndex():list.isSelectedIndex(1);Above, we have set the list with string values:String sports[]= { "Squash", "Fencing", "Cricket", "Football", "Hockey", "Rugby"}; JList list = new JList(sports);The following is an example to check if the second item is selected in JList:Examplepackage my; import java.awt.event.*; import java.awt.*; import javax.swing.*; class SwingDemo extends JFrame { static JFrame frame; static JList list; public static void main(String[] args) { frame = new JFrame("JList Demo"); SwingDemo s = new SwingDemo(); JPanel panel = ... Read More
This mbrtowc() function is used to convert multibyte sequence to wide character string. This returns the length of the multibyte characters in byte. The syntax is like below.mbrtowc (wchar_t* wc, const char* s, size_t max, mbstate_t* ps)The arguments are −wc is the pointer which points where the resulting wide character will be stored.s is the pointer to multibyte character string as inputmax is the maximum number of bytes in s, that can be examinedps is pointing to the conversion state, when interpreting multibyte string.Example#include using namespace std; void display(const char* s) { mbstate_t ps = mbstate_t(); // initial ... Read More
ResultSet holdability determines whether the ResultSet objects (cursors) should be closed or held open when a transaction (that contains the said cursor/ResultSet object) is committed using the commit() method of the Connection interface.The getHoldability() method of the Connection interface is used to retrieves and returns the current holdability value of the ResultSet objects in this connection.This method returns an integer value representing the current ResultSet holdability which will be either 1 or 2 where, 1 indicates the value HOLD_CURSORS_OVER_COMMIT.If the holdability of the ResultSet object is set to this value. Whenever you commit/save a transaction using the commit() method of the Connection ... Read More
slice()The slice() method extracts a part of a string and returns the extracted part in a new string.It doesn't modify the original string.syntaxslice() takes two parameters one is starting index and the other is ending index. It's notation is given below. string.slice(string.slice(starting index, ending index))Arguments a) starting index: It gives from which index string extraction should be started. b) ending index: It gives before which index string extraction should be ended.Example-1In the following example, slice() method slice the given string in to new string starting from index 18 to 26 (27-1) there by giving "Neuralink" as the output. Live Demo ... Read More
To separate components in a row or column, use the createGlue() method. This creates an invisible "glue" component that separates components.The following is an example to separate components in a row or column with Box −Examplepackage my; import java.awt.BorderLayout; import javax.swing.Box; import javax.swing.BoxLayout; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JScrollPane; public class SwingDemo { public static void main(String args[]) { JFrame frame = new JFrame("Matches"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JButton button1 = new JButton("CSK"); JButton button2 = new JButton("DC"); JButton button3 = new JButton("MI"); JButton ... Read More
Let us first create a collection with documents −> db.matchingFirstItemInTheArrayDemo.insertOne( { "ClientDetails": [ { "ClientName": "Larry", "ClientAge":28 } ] } ); { "acknowledged" : true, "insertedId" : ObjectId("5cd7a5d26d78f205348bc636") } > db.matchingFirstItemInTheArrayDemo.insertOne( { "ClientDetails": [ { "ClientName": "Chris", "ClientAge":56, } ] } ); { "acknowledged" : true, "insertedId" : ObjectId("5cd7a5f56d78f205348bc637") } > db.matchingFirstItemInTheArrayDemo.insertOne( ... Read More
The Location origin property returns the string corresponding to the URL’s protocol, hostname, host port number (if specified).SyntaxFollowing is the syntax −Returning value of the origin propertylocation.originExampleLet us see an example for Location origin property − Live Demo Location origin form { width:70%; margin: 0 auto; text-align: center; } * { padding: 2px; margin:5px; } input[type="button"] { border-radius: 10px; } Location-origin Current URL: var divDisplay = document.getElementById("divDisplay"); var urlSelect = document.getElementById("urlSelect"); function getorigin(){ divDisplay.textContent = 'URL Origin: '+location.origin; } OutputThis will produce the following output −Before clicking ‘Get origin’ button −After clicking ‘Get origin’ button −
Here we will see how to start some third-party application like notepad or anything using C++ program. This program is very simple, we can use command prompt command to do this task.We will pass the application name inside the system() function. This will open it accordingly.Example#include using namespace std; int main() { cout >> "Opening Nodepad.exe" >> endl; system("notepad.exe"); }Output
The segmentation error is one of the runtime error, that is caused because of the memory access violation, like accessing invalid array index, pointing some restricted address etc. In this article, we will see how to detect this type of error using the GDB tool.Let us see the code and respective steps to locate the error.Example#include main() { int* ptr = NULL; *ptr = 1; //trying to access unknown memory location printf("%p", ptr); }Compile the code using ‘gcc –g program_name.c’, and run using ‘./a.out’Outputsoumyadeep@soumyadeep-VirtualBox:~/Cpp_progs$ ./a.out Segmentation fault (core dumped)The segmentation error occurred.Write ‘gdb ./a.out core’soumyadeep@soumyadeep-VirtualBox:~/Cpp_progs$ gdb ... Read More