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Use the getPreviousSibling() method to get the previous sibling. Here, we are getting the previous sibling of child node “five” and displaying on Console −System.out.println("Get Previous Sibling = "+five.getPreviousSibling());The following is an example to get the previous sibling from a JTree −Examplepackage my; import javax.swing.JFrame; import javax.swing.JTree; import javax.swing.tree.DefaultMutableTreeNode; public class SwingDemo { public static void main(String[] args) throws Exception { JFrame frame = new JFrame("Demo"); DefaultMutableTreeNode node = new DefaultMutableTreeNode("Products"); DefaultMutableTreeNode node1 = new DefaultMutableTreeNode("Clothing (Product1 - P66778)"); DefaultMutableTreeNode node2 = new DefaultMutableTreeNode("Accessories (Product2 - P66779)"); ... Read More
To order with a custom rule, use the ORDER BY FIELD(). Let us first create a table −mysql> create table DemoTable ( Number int ); Query OK, 0 rows affected (0.55 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values(1); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable values(4); Query OK, 1 row affected (0.22 sec) mysql> insert into DemoTable values(2); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable values(3); Query OK, 1 row affected (0.14 sec)Display all records from the table using select statement −mysql> ... Read More
The UncaughtExceptionHandler is an interface inside a Thread class. When the main thread is about to terminate due to an uncaught exception the java virtual machine will invoke the thread’s UncaughtExceptionHandler for a chance to perform some error handling like logging the exception to a file or uploading the log to the server before it gets killed. We can set a Default Exception Handler which will be called for the all unhandled exceptions. It is introduced in Java 5 Version.This Handler can be set by using the below static method of java.lang.Thread class.public static void setDefaultUncaughtExceptionHandler(Thread.UncaughtExceptionHandler ueh)We have to provide an implementation of the interface ... Read More
Creating an exact copy of an existing object in the memory is known as cloning.The clone() method of the class java.lang.Object accepts an object as a parameter, creates and returns a copy of it (clones).In order to use this method, you need to make sure that your class implements the Cloneable interface.Example Live Demoimport java.util.Scanner; public class CloneExample implements Cloneable { private String name; private int age; public CloneExample(String name, int age){ this.name = name; this.age = age; } public void displayData(){ System.out.println("Name : "+this.name); ... Read More
The HTML DOM Input Email type property returns/sets type of Input Email.SyntaxFollowing is the syntax −Returning string valueinputEmailObject.typeSetting type to string valueinputEmailObject.type = stringValueString ValuesHere, “stringValue” can be the following −stringValueDetailsemailIt defines that input type is emaildatetime-localIt defines that input type is datetime-localradioIt defines that input type is radiotelIt defines that input type is tel and a number keypad is shown for inputExampleLet us see an example of Input Email type property − Live Demo Input Email type form { width:70%; margin: 0 auto; text-align: center; } ... Read More
To store string array in JList, at first create String array list:String sports[]= { "Football", "Fencing", "Cricket", "Squash", "Hockey", "Rugby"};Now, set it to JList:JList list = new JList(sports);The following is an example to store string array 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 = new JPanel(); String sports[]= {"Football", "Fencing", "Cricket", "Squash", "Hockey", "Rugby"}; ... Read More
Here we will see how to convert Little endian value to Big endian or big endian value to little endian in C++. Before going to the actual discussion, we will see what is the big endian and the little endian?In different architectures, the multi-byte data can be stored in two different ways. Sometimes the higher order bytes are stored first, in that case these are known as big endian, and sometimes the lower order bytes are stored first, then it is called little endian.For example, if the number is 0x9876543210, then the big endian will be −The little endian will ... Read More
You can use aggregate framework for this. Let us first create a collection with documents −>db.exactPositionDemo.insertOne({"StudentName":"John", "StudentScores":[78, 98, 56, 45, 89]}); { "acknowledged" : true, "insertedId" : ObjectId("5cd29a1c345990cee87fd883") }Following is the query to display all documents from a collection with the help of find() method −> db.exactPositionDemo.find().pretty();This will produce the following output −{ "_id" : ObjectId("5cd29a1c345990cee87fd883"), "StudentName" : "John", "StudentScores" : [ 78, 98, 56, 45, 89 ] }Case 1 − Query to aggregate a $slice to get an ... Read More
For this, set the layout orientation to the following −setLayoutOrientation(JList.VERTICAL_WRAP);The following is an example to display the JList items from top to bottom and left to right −Examplepackage my; import java.awt.BorderLayout; import java.util.ArrayList ; import java.util.List; import javax.swing.JFrame; import javax.swing.JList; import javax.swing.JPanel; import javax.swing.JScrollPane; public class SwingDemo { public static void main(String[] args) { JPanel panel = new JPanel(new BorderLayout()); List myList = new ArrayList(10); for (int index = 0; index < 20; index++) { myList.add("List Item " + index); } ... Read More
Use keyword AS for this. Let us first create a table −mysql> create table DemoTable ( Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, Name varchar(20) ); Query OK, 0 rows affected (3.16 sec)Insert some records in the table using insert command −mysql> insert into DemoTable(Name) values('John'); Query OK, 1 row affected (0.50 sec) mysql> insert into DemoTable(Name) values('Robert'); Query OK, 1 row affected (0.29 sec) mysql> insert into DemoTable(Name) values('David'); Query OK, 1 row affected (0.54 sec)Display all records from the table using select statement −mysql> select *from DemoTable;Output+----+--------+ | Id | Name | ... Read More