What is a wrapper and why would you use it?
What will be an ideal response?
?A wrapper is a class or object that is "wrapped around" a simpler element; the Integer wrapper class contains a simple integer and useful methods to manipulate it.
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The syntax for the substring method is ____.
A. Substring.string(startIndex) B. string.Substring(startIndex[, numCharsToAccess]) C. string.Substring(numCharsToAccess,startIndex) D. string.Substring([numCharsToAccess],startIndex)
What is the value for this registry key in the Data column?
What will be an ideal response?
a. To access the Windows Registry, click Start > Search for regedit and select Registry Editor. Click Yes when asked to allow this app to make changes.
The Registry Editor has five hives. These hives are at the top level of the registry.
? HKEY_CLASSES_ROOT is actually the Classes subkey of HKEY_LOCAL_MACHINESoftware. It stores information used by registered applications like file extension association, as well as a programmatic identifier (ProgID), Class ID (CLSID), and Interface ID (IID) data.
? HKEY_CURRENT_USER contains the settings and configurations for the users who are currently logged in.
? HKEY_LOCAL_MACHINE stores configuration information specific to the local computer.
? HKEY_USERS contains the settings and configurations for all the users on the local computer. HKEY_CURRENT_USER is a subkey of HKEY_USERS.
? HKEY_CURRENT_CONFIG stores the hardware information that is used at bootup by the local computer.
b. In a prev
What is the function of the compiler?
A. Produces cross-platform code. B. Determines link errors. C. Issues commands directly to the processor. D. Reads source code and produces machine code.
If a cell contains $B12, it is said to contain a(n) ________ cell reference
Fill in the blank(s) with correct word