Use the setMinimumSize() method to set the minimum size limit for a JFrame −JFrame frame = new JFrame(); frame.setMinimumSize(new Dimension(500, 300));The following is an example to set minimum size limit for a JFrame −Exampleimport java.awt.Color; import java.awt.Dimension; import javax.swing.JButton; import javax.swing.JFrame; public class SwingDemo {    public static void main(String[] ... Read More

MODELESS TypeThe following is an example to set JDialog with Modality type MODELESS −Exampleimport java.awt.Cursor; import java.awt.Dialog.ModalityType; import java.awt.Dimension; import java.awt.event.ActionEvent; import javax.swing.AbstractAction; import javax.swing.JButton; import javax.swing.JDialog; import javax.swing.JFrame; public class SwingDemo {    public static void main(String[] args) {       JFrame frame = new JFrame();     ... Read More

Here we will see how to generate random numbers, which are following in a normal distribution. For the normal random, the formula is like below.𝑧 = √−2 ln 𝑥1 cos (2𝜋𝑥2)Here x1 and x2 are chosen randomly.Example#include #include #include #include using namespace std; double rand_gen() { ... Read More

Here we will see how to get time (the elapsed time for the program or any other kind of time).Here we are using linux library for C++. There is a structure called timeval. This timeval stores the time in seconds, milliseconds. We can create two time for start and end, ... Read More

For this, you can create a stored procedure. Let us first create a table.mysql> create table DemoTable    -> (    -> Value int    -> ); Query OK, 0 rows affected (0.55 sec)Following is the query to create a stored procedure to auto insert values to a table from ... Read More

Here we will see how to print some lines into the linux terminal with some color. Here we are doing anything special into C++ code. We are just using some linux terminal commands to do this. The command for this kind of output is like below.\033[1;31m Sample Text \033[0mThere are ... Read More

Let’s say we are creating a database “web” −mysql> SHOW CREATE DATABASE web;This will produce the following output displaying the default charset as well −+----------+-----------------------------------------------------------------------------------------+ | Database | Create Database                                         ... Read More

You can use DISTINCT along with COUNT(). Let us first create a table −mysql> create table DemoTable    -> (    -> Id int,    -> Score int    -> ); Query OK, 0 rows affected (0.95 sec)Insert some records in the table using insert command −mysql> insert into DemoTable ... Read More

We can clear the console using C++ code. To do this we have to execute some system commands. In Linux systems, the POSIX is used. We can call system() function to execute system command. For clearing the console in linux, we can use “clear” command. This will be passed inside ... Read More

To create high resolution timer we can use the chrono library. This library has high resolution clock. This can count in nanoseconds.In this program we will see the execution time in nanoseconds. We will take the time value at first, then another time value at the last, then find the ... Read More