Related Questions

Array values are keyed by ______ values (called indexed arrays) or using ______ values (called associative arrays). Of course, these key methods can be combined as well.
A Float, string
B Positive number, negative number
C Even number, string
D String, Boolean
E Integer, string
Two merchants each sell an article for Tk.1000. If Merchant a computes his profit on cost price, while Merchant B computer his profit on selling price, they end up making profits of 25% respectively. By how much is the profit made by Merchant B greater than that of Merchant A?
A Tk. 66.67
B Tk. 50
C Tk. 125
D Tk. 200
Two merchants sell, each an article for Tk. 1000. If Merchant A computer his profit on cost price, while Merchant B computes his profit on selling price, they end up making profits of 25% respectively. By how much is the profit made by Merchant B greater than that of Merchant A?
A 66.67
B 50
C 125
D 200
Absent any actual need for choosing one method over the other, does passing arrays by value to a read-only function reduce performance compared to passing them by reference?
A Yes, because the interpreter must always create a copy of the array before passing it to the function.
B Yes, but only if the function modifies the contents of the array.
C Yes, but only if the array is large.
D Yes, because PHP must monitor the execution of the function to determine if changes are made to the array.
E No
Two dimensional arrays are also called
A tables arrays
B matrix arrays
C both a and b
D None of the above
Two dimensinal arrays are also called
A tables araya
B matrix arrys
C both a and b
D None of the above
Which of the methods are used to manage result sets using both associative and indexed arrays?
A get_array() and get_row()
B get_array() and get_column()
C fetch_array() and fetch_row()
D mysqli_fetch_array() and mysqli_fetch_row()
In Java arrays are
A objects
B object references
C primitive data type
D None of the above
“An expression that can legally appear on the left side of an assignment expression.” is a well known explanation for variables, properties of objects, and elements of arrays. They are called
A Properties
B Prototypes
C Lvalue
D Definition
The new Java arrays can be created into a JavaScript programs using which of the following classes?
A java.Array
B java.lang.*
C java.lang.Array
D java.lang.reflect.Array

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