Chapter 15.10, Problem 15.31CP

Explanation of Solution

TextArea:

• The “TextArea” is a multiline “TextField” that can take many lines of input.
• It is present in the “javafx.scene.control” package.
• The “TextArea” class contains two constructors such as no-argument constructor and argument constructor.
  • The “no-argument constructor” is used to create an empty “TextArea”.
  • Example: TextArea sampleArea = new TextArea();
• The “argument constructor” accepts a “String” argument in “TextArea” field.
• Example: TextArea sampleArea = new TextArea("This is the sample TextArea");

Changing the number of columns in TextArea:

• Default number of columns are displayed in the “TextArea” is “40”...