A Java class can have which of the following methods?
A. void foo(int a)
B. void foo(int a, int b)
C. void foo(double a)
D. void foo(double a, double b)
E. void foo(int b)
a. All of the above.
b. A, B, D, E.
c. A, B, C, D.
d. A, C, D, E.
c. A, B, C, D.
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With regard to default arguments:
a. Zero or more call-by-value parameters in a function may have default arguments. b. All value parameters must have default arguments. c. If a function has a reference parameter, no parameters to the left of the reference parameter may have default arguments. d. If a parameter is missing a default argument, no parameters to the left of this point may have a default argument. e. Reference parameters can have default arguments.
This device shows the signal strength of all wireless SSIDs found. The signal strength is the wireless signal power level and it is represented in –dBm format, from 0 to –100.
What will be an ideal response?
Which class do you use to read data from a text file?
a. File b. PrintWriter c. Scanner d. System
A Function procedure declaration must define what type of data it will return when it is called.
Answer the following statement true (T) or false (F)