Answer: setJMenubar
Explanation:Menus that are component of the Menu bar that display the options and tools for any function that can be performed in the system have the connection with the window in the field of java through the command of the setJMenubar. It is the command which is given to execute to bring the menu to the particular frame and get it attached according to the JFrame. Therefore, the correct option is setJMenubar.
Answer:
A
Explanation:
The most likely cause of the problem is that You signed in to BIOS/UEFI with the user power-on password rather than the supervisor power-on password. The User password only enables the machine to boot while the supervisor password allows entering the BIOS settings.
Answer:
Hardware.
Explanation:
All electronics devices like computer servers, DVDs, smartphones and cell phones, wrist watches etc, comes with two main components, they are hardware and software.
The hardware components are the physical part of the device, while the software component is the written instructions configured to the hardware for executing tasks.
Cleaning the motherboard in a computer system, fixing a DVD, servicing other internal components of devices are all hardware maintenance and repair services.
Answer:
C: Security
Explanation:
Communications and information systems principles need to be, among other things, secure. They need to be able to protect sensitive information from those who intentionally not need to know. Some incident information like voice, networks, and data, are very sensitive and thus, should be secure to the right levels and should comply with privacy laws and data protection.
Answer:
Option 2: Variable names can not begin with a number.
Explanation:
As given Mark and John named a variable as 24_hour_mart while writing a program in python.
While it is forbidden to name a variable starting with any digit, only alphabets (capital and smaller) and underscore can be the first letter of the variable name.
Moreover, by considering the other options given:
- Variable name can include the underscore (_) between the words. It is used instead of spaces that are not allowed.
- There is no upper limit for variable length, it can be of any reasonable length and more than 10 characters say 11 or 12 are reasonable.
- There is no lower limit for variable length, it can be any reasonable length , even it can be of 1 character.
Variables named in python language must not be the keywords as they are reserved for other purposes.
i hope it will help you!
