To set the location of component, use the GridBagConstraints. Here, we have two components −GridBagConstraints gbc = new GridBagConstraints(); JLabel label = new JLabel("Email-Id − "); JTextArea text = new JTextArea(); text.setText("Add id here...");Set the location with gridx and gridy −gbc.gridx = 0; gbc.gridy = 0; layout.setConstraints(label, gbc); panel.add(label);The following ... Read More

Yes, we can do that. Let us first create a table −mysql> create table DemoTable    (    ID int,    GameScore int    ); Query OK, 0 rows affected (0.55 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values(15, 848747); Query OK, 1 row ... Read More

To enable colum selection, use the setColumnSelectionAllowed() method and set it to TRUE −table.setCell setColumnSelectionAllowed(true);The following is an example to enable column selection in a table −Examplepackage my; import java.awt.Color; import javax.swing.BorderFactory; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.border.TitledBorder; public class SwingDemo {    public static void ... Read More

Here, now() represents the current date. To check whether it falls between two specific dates, you need to use the BETWEEN. Let us first create a table −mysql> create table DemoTable    (    FirstDate datetime,    SecondDate datetime    ); Query OK, 0 rows affected (0.60 sec)Insert some records ... 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'); ... Read More

For predefined selection, use the setSelectedIndex() method, wherein you need to set the index of the item you want to be visible first.Let’s say the following is our aComboBox with elements −Object[] sports = { "Football", "Cricket", "Squash", "Baseball", "Fencing", "Volleyball", "Basketball" }; JComboBox comboBox = new JComboBox(sports);Now, set the ... Read More

Let us first create a table with one of the column as ID −mysql> create table DemoTable    (    ID int,    StudentName varchar(10),    CountryName varchar(20)    ); Query OK, 0 rows affected (0.70 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values(0, ... Read More

For this, use the aggregate function COUNT() along with GROUP BY. Let us first create a table −mysql> create table DemoTable    (    Id int NOT NULL AUTO_INCREMENT PRIMARY KEY,    Value int    ); Query OK, 0 rows affected (0.74 sec)Insert some records in the table using insert ... Read More

Let’s first see how we set text in a components tooltip −JLabel label3 = new JLabel("Password", SwingConstants.CENTER); label3.setToolTipText("Enter Password");To display multiple lines of text in a tooltip, use . Here, we have used the HTML tag for new line and that would create multiple lines of text in the ... Read More

If you have done little-bit of programming in python, you have seen the word “**args” and “**kwargs” in python functions. But what exactly they are?The * and ** operators did different operations which are complementary to each other depending on where we are using them.So when we are using them ... Read More