Explain how one component can use two separate listeners at the same time. Give an example.
What will be an ideal response?
One component may generate two different types of events. For example, a panel can generate a mouse pressed event and a key pressed event. Therefore, two different listeners, one for each type, can be added to the component. When an event occurs, only the appropriate method of the appropriate listener is called.
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What is Rem?
What will be an ideal response?
Which of the following statements is false?
a. With a BufferedOutputStream each output operation is directed to a buffer large enough to hold the data of many output operations. Transfer to the output device is performed in one large physical output operation when the buffer fills. b. With a BufferedOutputStream, a partially filled buffer can be forced out to the device at any time by invoking the stream object’s force method. c. With a BufferedInputStream, many “logical” chunks of data from a file are read as one large physical input operation into a memory buffer. d. With a BufferedInputStream, as a program requests data, it’s taken from the buffer. When the buffer is empty, the next actual physical input operation is performed.
Express 15 gallons in liters (use 1 gallon is 3.79 liters).
What will be an ideal response?
Motherboards use memory slots to provide additional I/O devices
Indicate whether the statement is true or false