Java Timer Application whit a Swing graphical user environment.

You need to create a Java application with a Swing graphical user environment. The application should be started with a dialog with two options: Settings and Close. By clicking Close, the application closes immediately. Clicking Settings opens the first window, which should contain all the controls shown in the following image. After a certain time, or at a certain time, a second window will appear, whose background will change color, with the background color and speed of change depending on the settings in the first window. The second window should be displayed after the timer-defined waiting time has expired. In the first case (onTime) - at exactly the set time (in the form HH: mm: ss), or in the second case (countdown) - after the selected number of seconds (the whole non-negative number). Of course, one option excludes another. The Choose color button displays the color picker palette, and when selected the color will be displayed in the label next to it. It is enough to show the color in RGB format or color the label text. One color or multiple colors can be used. All that matters is that the selected color is replaced with white or some other color to achieve a "blink" effect. The drop-down list is used to select the speed of color change in another window. A minimum of 1000 milliseconds can be taken, and a maximum of 5 seconds. The Start key is used to start the timer, with all controls in the first window becoming inactive except for the Stop key. The entire application should only be closed if the Close (x) key of the first window is selected. When the timer is active (while waiting for the second window to appear or during its display), all controls of the first window except the Stop button are disabled. By pressing the Stop button, the timer goes off, the second window disappears, and the controls in the first window become available again.