Chapter 12, Problem 4AW

Explanation of Solution

“HBox” Layout container:

• “HBox” layout pane is used to display nodes in a horizontal row.
• Syntax: HBox hbox_Object = new HBox ();
• Setting alignment for HBox pane: Setting alignment for “HBox” pane is done by using the function “setAlignmnet()”.

Statement to align the controls to the center is as follows:

hbox.setAlignment(pos.CENTER);

In the above statement,

• “hbox” is the variable that references an “HBox” container.
• “setAlignment ()” is the function that is used to align the controls.
• “Pos” is an enumeration type.
• “CENTER” is the position of the alignment...