Answer the following questions true (T) or false (F)
1. When an interface lists a method as “optional,” you do not need to implement it when defining a class that implements the interface.
2. For-each loops can not be used with Collection classes.
1. False
2. False
Computer Science & Information Technology
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By default, worksheets are names as ________
A) worksheetA, worksheetB, worksheetC B) worksheet1, worksheet2, worksheet3 C) sheet1, sheet2, sheet3 D) spreadsheet1, spreadsheet2, spreadsheet3
Computer Science & Information Technology
To use the ____ of mobile devices, you press the image of a key with your finger, a digital pen, or a stylus.
A. touch screen keyboard B. mouse C. joystick D. motion-sensing controller
Computer Science & Information Technology