(TCO 4) What can you say about the following Java class definition?
public class MyClass extends JFrame
{
…….
private class RadioButtonHandler implements ItemListener { … }
} (
A) MyClass creates a custom frame and will use an object of the RadioButtonHandler inner
class to handle ItemEvents from any radio buttons that it uses.
B)The RadioButtonHandler class cannot be contained within the definition of MyClass.
C)MyClass cannot use objects of the RadioButtonHandler class because it is a private class.
D)The RadioButtonHandler class should extend ItemListener rather than implement it.
(TCO 3) Which of the following is true for a JLabel?
A) Can be used to display uneditable text.
B) Can be used to display editable text.
C)Enables users to enter a single line of data from the keyboard.
D)Enables users to enter multiple lines of data from the keyboard
Solution
1) option B
2) option A.
(TCO 4) What can you say about the following Java class definition.pdf
1. (TCO 4) What can you say about the following Java class definition?
public class MyClass extends JFrame
{
…….
private class RadioButtonHandler implements ItemListener { … }
} (
A) MyClass creates a custom frame and will use an object of the RadioButtonHandler inner
class to handle ItemEvents from any radio buttons that it uses.
B)The RadioButtonHandler class cannot be contained within the definition of MyClass.
C)MyClass cannot use objects of the RadioButtonHandler class because it is a private class.
D)The RadioButtonHandler class should extend ItemListener rather than implement it.
(TCO 3) Which of the following is true for a JLabel?
A) Can be used to display uneditable text.
B) Can be used to display editable text.
C)Enables users to enter a single line of data from the keyboard.
D)Enables users to enter multiple lines of data from the keyboard
Solution
1) option B
2) option A
