While writing any piece of code in Java, there is a certain set of rules and regulations that need to be followed, that is considered as a standard. For example − A class contains variables, and functions. The functions can be used to work with the variables. Classes can be ... Read More

Yes, using the below syntax −select * from information_schema.tables where table_name=yourTableName;Let us first create a table −mysql> create table DemoTable1600    -> (    -> StudentId int,    -> StudentFirstName varchar(20)    -> ); Query OK, 0 rows affected (0.51 sec)Insert some records in the table using insert command −mysql> ... Read More

The Object.GetTypeCode() method in C# is used to get the Type of the current instance.SyntaxThe syntax is as follows −public Type GetType ();Example Live Demousing System; public class Demo {    public static void Main() {       Object ob = new Object();       String str = "Jim"; ... Read More

We can define styles for tables using CSS. The following properties are used to style and its elements −borderThe CSS border property is used to define border-width, border-style and border-color.border-collapseThis property is used to specify whether a elements should have a shared or separate border.captionThe caption-side property is ... Read More

Let us see some ways to read input from console in Java −Exampleimport java.util.Scanner; public class Demo{    public static void main(String args[]){       Scanner my_scan = new Scanner(System.in);       String my_str = my_scan.nextLine();       System.out.println("The string is "+my_str);       int my_val ... Read More

In JShell 9, variables can be declared during a session. Once the user has logged into the session, they can declare a variable as follows −jshell> int val = 56 ;Italics indicate the terminal, once the user has logged in to their session.The above line would print the below output. ... Read More

Followig is the code showing how to use underscore in numeric literals in Java −Example Live Demopublic class Demo{    public static void main (String[] args) throws java.lang.Exception{       int my_num_1 = 6_78_00_120;       System.out.println("The number is : " + my_num_1);       long my_num_2 = ... Read More

Using a predefined class name as a class nameLet us see an example −Example Live Demopublic class Number{    public static void main (String[] args){       System.out.println("Pre-defined class name can be used as a class name");    } }OutputPre-defined class name can be used as a class nameThe class ... Read More

To sort user-defined object in Java, the code is as follows −Example Live Demoimport java.io.*; import java.util.*; public class Demo{    static void sort_objects(String my_data){       String[] my_vals = my_data.split(" ");       Map my_map = new TreeMap();       for (int i = 1; i < ... Read More

Unreachable code error occurs when the code can’t be compiled due to a variety of reasons, some of which include: infinite loop, return statement before the unreachable line of code.Let us see an example −Example Live Demopublic class Demo{    public static void main(String args[]){       int val = ... Read More