The placeholder attribute of the element is used to set a hint for the input that would give a short description about what is expected in that particular input. This attribute works for the following input types − text, url, search, email, password and tel. It introduced in HTML5.Following ... Read More

Let’s say we have a menu and within that we need to set the JRadioButtonMenuItem. Here’s the Menu −JMenu editMenu = new JMenu("Edit"); editMenu.setMnemonic(KeyEvent.VK_E); menuBar.add(editMenu);Now, set the editMenu and add it to the MenuBar −JMenu editMenu = new JMenu("Edit"); editMenu.setMnemonic(KeyEvent.VK_E); menuBar.add(editMenu);Now, create Options Menu and add it to the editMenu ... Read More

For this, use the ORDER BY clause. Let us first create a table −mysql> create table DemoTable    (    StudentId int    ); Query OK, 0 rows affected (0.59 sec)Now you can insert some records in the table using insert command −mysql> insert into DemoTable values(100); Query OK, 1 ... Read More

Here we will see what is the proxy class in C++. The Proxy class is basically the Proxy design pattern. In this pattern an object provides a modified interface for another class. Let us see one example.In this example, we want to make an array class, that can store only ... Read More

The alt attribute of element is used to set an alternate text for an area. This alternate text i.e. alt is visible when the image isn’t displayed for reasons like internet, loading issues, errors, etc.Following is the syntax −Here, text is the alt text to be set.Let us now ... Read More

In C, C++, and java, we do some mathematical operations with floating point numbers. Now here we will check whether the floating point numbers are following the associativity rule or not.The answer is NO. The floating point numbers does not follow the associativity rules in some cases. Here we will ... Read More

Yes, we can remove the title bar of a frame using the setUndecorated() method. Set it to TRUE if you don’t want to remove the Title Bar.The following is an example to remove the title bar of a frame in Java −Examplepackage my; import java.awt.GridLayout; import javax.swing.JFrame; import javax.swing.JLabel; import ... Read More

Use LIKE for this, as shown below −select *from yourTableName where yourColumnName LIKE 'A%';Let us first create a table −mysql> create table DemoTable    (    StudentName varchar(100)    ); Query OK, 0 rows affected (0.66 sec)Now you can insert some records in the table using insert command −mysql> insert ... Read More

To work with multiple AND conditions in MySQL, following is the syntax −select *from yourTableName where yourColumnName1=yourValue1 and yourColumnName2=yourValue2 and yourColumnName3=yourValue3;Let us first create a table −mysql> create table DemoTable    (    StudentId int NOT NULL AUTO_INCREMENT PRIMARY KEY,    StudentName varchar(20),    StudentAge int,    StudentCountryName varchar(40)   ... Read More

The download attribute of the element is used to set the name of the file to be downloaded which would download when user clicks on the hyperlink.Following is the syntax −The file is the name of the file set for download.Let us now see an example to implement the ... Read More