Chapter 12, Problem 12AW

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-argumnet constructor” is used to create an empty “TextArea”.
  • The “argument constructor” accepts a “String” argument in “TextArea” field.
• The “TextArea” control performs a word wrapping.
  • The line breaks always occur between words, not in the middle of a word.
• User can enable the text wrapping by using “TextArea” class “setWrapText()” method.
  • This method takes a “boolean” argument.
  • If the user passes the argument is “true”, then text wrapping is enabled.
  • Otherwise, the text wrapping is disabled.

Example:

The example for “no-argument constructor” and “argument constructor” is shown below:

//for no-arg constructor

TextArea sampleArea = new TextArea();

• Above statement creates a TextArea with no arguments.

  //for argument constructor

  TextArea sampleArea = new TextArea("This is an example TextArea");

• Above statement creates a TextArea with arguments.

The example for creating an empty “TextArea” with the height, width and line wrapping is shown below:

//create the empty TextArea control

TextArea exampleText = new TextArea();

//set a width of 30 columns to empty "TextArea"

exampleText...