Answer:
Statement D is false
D. Java class libraries are not portable = FALSE
Explanation:
Because java class library are portable and JVM (java virtual machine) makes java class library and other java codes portable and platform independent and JVM act as a OS or imaginary CPU for that code.
Answer:
When a programmer tries to access an item in an array cell whose index is greater than or equal to the array's logical size, this data element or item is garbage. This means that currently, the item is not the part of the program's useful data. Garbage contains objects or data which will not be used by a program running on it. So the value returned could be either of the two:
- Value would be an arbitrary or random number if it is an array of numbers. Arbitrary means that the value is not predefined or specified in advance.
- Value returned would be null if it is an array of objects.
Explanation:
1) the quality of purchased good may be low
2) there might me fraud and cheaters
3) it might be risky
4) we may not get our orders on time
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