Position buttons vertically one after another using the Box class. Use the createVerticalBox() method that displays components from top to bottom −JButton button1 = new JButton("One"); JButton button2 = new JButton("Two"); JButton button3 = new JButton("Three"); Box box = Box.createVerticalBox(); box.add(button1); box.add(button2); box.add(button3);The following is an example to position buttons ... Read More

You can use DATE_ADD() function with where clause for this. Let us first create a table −mysql> create table DemoTable    (    ShippingDate date    ); Query OK, 0 rows affected (0.54 sec)Note : The current date and time is as follows, we found using NOW() −mysql> select now(); ... Read More

Use the createVerticalStrut() method to create an invisible fixed height component between two components. Let’s say we have some button and we are creating a fixed height between them −box.add(button4); box.add(Box.createVerticalStrut(50)); box.add(button5); box.add(Box.createVerticalStrut(30)); box.add(button6);The following is an example to create an invisible fixed height component between two components in Java ... Read More

For this, use both GROUP BY and ORDER BY clause. Let us first create a table −mysql> create table DemoTable    (    StudentId int NOT NULL AUTO_INCREMENT PRIMARY KEY,    StudentGrade char(1)    ); Query OK, 0 rows affected (0.87 sec)Insert some records in the table using insert command ... Read More

The charset attribute of the element is used to specify the character encoding for the HTML document. You can use the charset attribute on as well as element.Different charsets include ASCII, ANSI, ISO-8859-1, UTF-8, etc. ISO-8859-1 supports 256 different character codes. ASCII defined 128 different alphanumeric characters. ... Read More

Yes, we can read from JOptionPane. Here, we will get the result of the showInputDialog() in a String variable −String input = JOptionPane.showInputDialog("Enter the C++ lessons you covered till now?");After getting the result, we will convert it to integer with parseInt() and display it on Console −int res = Integer.parseInt(input); ... Read More

Use ORDER BY clause for this. Let us first create a table −mysql> create table DemoTable    (    Value1 int,    Value2 int    ); Query OK, 0 rows affected (0.54 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values(10, 40); Query OK, 1 ... Read More

The for attribute of the element sets the relationship between the result of the calculation and the elements used in the calculation.Following is the syntax:Above, id is the element id, which sets a separate list of one or more elements with a space. These elements specify the relationship between ... Read More

For this, create JOptionPane.QUESTION_MESSAGE and with the user action display individual messages, for example −int res = JOptionPane.showOptionDialog(new JFrame(), "Do you like Cricket?", "Hobbies", JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE, null, new Object[] { "Yes", "No" }, JOptionPane.YES_OPTION); if (res == JOptionPane.YES_OPTION) {    System.out.println("Selected Yes!"); }Above, we have displayed a message on console ... Read More

To combine multiple rows into a comma delimited list, use the GROUP_CONCAT() method. Let us first create a table −mysql> create table DemoTable    (    Id int NOT NULL AUTO_INCREMENT PRIMARY KEY,    Name varchar(30),    Marks int    ); Query OK, 0 rows affected (0.52 sec)Insert some records ... Read More