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nikitadnepr [17]
4 years ago
7

1.Which of the following class definitions defines a legal abstract class?a. class A { abstract void unfinished() { } }b. class

A { abstract void unfinished(); }c. abstract class A { abstract void unfinished(); }d. public class abstract A { abstract void unfinished(); }
Computers and Technology
1 answer:
xxMikexx [17]4 years ago
8 0

Answer:(c) abstract class A { abstract void unfinished(); }

Explanation:

A legal abstract class must have the keyword abstract before the class and an abstract class has abstract functions with the keyword abstract written and a void as the return type.

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Which automatic startup option should you choose when windows' startup fails immediately after installing a new driver but befor
Luda [366]

Answer:

last known good configuration

Explanation:

If you're having difficulties starting Windows, the Last Known Good Configuration, or LKGC for short, is a technique to get it started. It loads the drivers and registry data from the last time you began and shut down your computer successfully.

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2 years ago
What are barcode and rfid tags ​
Solnce55 [7]

Answer:

They are both ways to identify assets (e.g., persons, animals, objects).

Explanation:

A barcode is a bit of information (usually a number) printed as a line or block pattern on a surface (e.g., a sticker).

An RFID is a bit of computer memory with an antenna.

Both can be read with the appropriate scanner device.

7 0
3 years ago
Read 2 more answers
Can someone help me plz
xxMikexx [17]

Answer:

ok but on what tho

Explanation:

plz explain yourself

8 0
3 years ago
Read 2 more answers
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
Francis has designed a picture book appropriate for third graders. He wants teachers across the world to freely download use, an
mestny [16]

Answer:

The correct answer will be "Project Gutenberg".

Explanation:

  • Project Gutenberg continues to obtain lots of requests for authorization for using printed books, pictures, as well as derivatives from eBooks. Perhaps some applications should not be produced, because authorization would be included in the objects provided (as well as for professional usages).
  • You can copy, hand it over, or m actually-use it underneath the provisions including its license that was included in the ebook.

So that the above is the right answer.

8 0
3 years ago
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