Which of the following statements will convert a string s into a double value d?
a. d = Double.parseDouble(s);
b. d = (new Double(s)).doubleValue();
c. d = Double.valueOf(s).doubleValue();
d. All of the above.
d All are fine. a is preferred because it does not have to create an object.
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Wiles and Reyes identified four critical characteristics that an evidence storage facility must possess. Which of the following helps describe a good lockup?
a. Nobody except the investigator is allowed in or out once the evidence is secured. b. There can only be a single entrance to the storage room and it must be locked with both an electronic lock and a physical lock. c. Access to the storage facility is limited to authorized storage custodians. d. Video recording equipment must monitor the access door of the facility 24/7 and that recording equipment must not be available to anyone except authorized personnel.
The ____ tries to predict what data and instructions will be needed and retrieves them ahead of time in order to help avoid delays in processing.
A. control unit B. floating point unit C. arithmetic/logic unit D. prefetch unit