The current method executing is always the method whose activation record is ________.
a. at the bottom of the stack.
b. at the top of the stack.
c. never placed on the stack.
d. second from the top of the stack, just below the previous method call.
b. at the top of the stack.
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Answer the following statements true (T) or false (F)
1. Once a program is in memory, the dispatcher uses its external priority to determine its right to access the processor. 2. Until the program is in memory, it has no internal priority. Once in memory, its external priority is no longer relevant. 3. The most important measure of effectiveness of a time-sharing system is response time 4. During idle periods, the operating system’s spooling module reads data from such slow devices as terminal keyboards and stores them on a highspeed medium such as disk. Later, when the program is loaded, its input data can be read from high-speed disk. 5. Fragmentation occurs when two (or more) programs each control a resource needed by the other.
Select the attribute used to limit the width of a text box as displayed in a browser.
a. size b. maxsize c. limit d. columns
When a thread executing a synchronized statement (or method) completes or satisfies the condition on which another thread may be waiting, it can call Object method ________ or ________ to allow a waiting thread or all waiting threads to transition to the runnable state again.
a. notifyThread, notifyAllThreads b. wakeUpThread, wakeUpAllThreads c. notify, notifyAll d. None of the above.
A(n) ________ character is used to represent one or more unknown characters in a string
Fill in the blank(s) with correct word