The answer is C. Choose a topic that he is interested in and wants others to know more about.
Answer:
With a Combo box, you can enter a value either by typing the value or by selecting it from a list.
Explanation:
While working on forms, different types of controls present under the toolbox of development environment are make into use by dragging them onto the form with the help of mouse.
One of the control from toolbox is Combo Box, which is actually a mixture of listbox and a textbox. This means it has properties of both the boxes because the desired value or entity can be written into the combo box manually and it can also be chose from the drop down menu (list) which appears on clicking the small arrow head.
A return type cannot exist in the constructor. It ought to produce and deliver fresh objects. Consequently, a compilation error would result.
Including a return type in a constructor declaration is not allowed. A constructor has to accept one or more input parameters. In the absence of explicitly declared constructors for the class, Java will give a default constructor. The name of the constructor should match the class name. 2) The compiler will automatically produce a default parameterless constructor for a class if you don't define one. 3) All instance variables are initialized to default values, such as 0, null, and super(), by the default constructor.
Learn more about variable here-
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Answer:
D
Explanation:
the first three you would need hands-on practice to learn.
