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12345 [234]
2 years ago
15

What type casting mechanism should be used if you want to safely change (cast) a pointer type for pointing to a different object

in an inheritance hierarchy?
Computers and Technology
1 answer:
Reil [10]2 years ago
8 0

A<u> dynamic caste</u> casting mechanism should be employed if you want to safely change (cast) a pointer type for meaning to a different object in an inheritance hierarchy.

<h3>What is dynamic type casting?</h3>

The dynamic type cast transforms a pointer (or reference) to one class T1 into a pointer (reference) to another class T2 . T1 and T2 must be part of the same order, the classes must be accessible (via public derivation), and the modification must not be ambiguous.

<h3>What is casting mechanism?</h3>

Casting methods involve the use of molten material, usually metal. This molten material is then poured into a mold cavity that takes the form of the completed part. The molten material then cools, with heat naturally being extracted via the mould, until it solidifies into the desired shape.

To learn more about dynamic caste, refer

brainly.com/question/12634265

#SPJ4

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Suppose you have two arrays of ints, arr1 and arr2, each containing ints that are sorted in ascending order. Write a static meth
telo118 [61]
Since both arrays are already sorted, that means that the first int of one of the arrays will be smaller than all the ints that come after it in the same array. We also know that if the first int of arr1 is smaller than the first int of arr2, then by the same logic, the first int of arr1 is smaller than all the ints in arr2 since arr2 is also sorted.

public static int[] merge(int[] arr1, int[] arr2) {
int i = 0; //current index of arr1
int j = 0; //current index of arr2
int[] result = new int[arr1.length+arr2.length]
while(i < arr1.length && j < arr2.length) {
result[i+j] = Math.min(arr1[i], arr2[j]);
if(arr1[i] < arr2[j]) {
i++;
} else {
j++;
}
}
boolean isArr1 = i+1 < arr1.length;
for(int index = isArr1 ? i : j; index < isArr1 ? arr1.length : arr2.length; index++) {
result[i+j+index] = isArr1 ? arr1[index] : arr2[index]
}
return result;
}


So this implementation is kind of confusing, but it's the first way I thought to do it so I ran with it. There is probably an easier way, but that's the beauty of programming.

A quick explanation:

We first loop through the arrays comparing the first elements of each array, adding whichever is the smallest to the result array. Each time we do so, we increment the index value (i or j) for the array that had the smaller number. Now the next time we are comparing the NEXT element in that array to the PREVIOUS element of the other array. We do this until we reach the end of either arr1 or arr2 so that we don't get an out of bounds exception.

The second step in our method is to tack on the remaining integers to the resulting array. We need to do this because when we reach the end of one array, there will still be at least one more integer in the other array. The boolean isArr1 is telling us whether arr1 is the array with leftovers. If so, we loop through the remaining indices of arr1 and add them to the result. Otherwise, we do the same for arr2. All of this is done using ternary operations to determine which array to use, but if we wanted to we could split the code into two for loops using an if statement.


4 0
4 years ago
Explain in brief terms some of the technology and developments that were important in the history and development of the Interne
igomit [66]

Answer: The Internet started in the 1960s as a way for government researchers to share information. ... This eventually led to the formation of the ARPANET (Advanced Research Projects Agency Network), the network that ultimately evolved into what we now know as the Internet.

Have a nice day ahead :)

7 0
2 years ago
Your car's engine, transmission, power steering, and brakes all require __________ inspection and changes.
kvasek [131]

The answer is C


All parts require fluid

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3 years ago
Read 2 more answers
An automotive engine’s camshaft rotates?
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<span>C. The same speed as the crankshaft..... hope this helps!
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3 years ago
When using a self-contained recovery device on a cfc, hcfc, or hfc system with an operating compressor, technicians must?
Neporo4naja [7]

When using a self-contained recovery device on a cfc, hcfc, or hfc system with an operating compressor. Technicians must recover 80% of the nameplate charge.

Compressor is a mechanical device used in many industries which has the function of increasing gas pressure by reducing its volume. The air compressor is a specific type of gas compressor.

Compressors can be characterized in a number of different ways, but are usually divided into types based on the functional method used to produce compressed air or gas. The following are common compressor types. Types covered include:

  • Pistons
  • Diaphragm
  • Helical Screw
  • Slide propeller
  • Scrolling
  • Rotary Lobe
  • Centrifugal
  • Axial

How to use an air compressor

  1. Position the Air Compressor
  2. Check the Oil Level
  3. Check the Drain Valve
  4. Set the PSI
  5. Prepare the Air Tank
  6. Connect the Air Hose
  7. Connect the Desired Tool
  8. Remove Excess Moisture

You can learn more about compressor here brainly.com/question/26581412

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