Answer:
previousAddition instance variable
Explanation:
In order to accomplish this you would need to add a previousAddition instance variable. In this variable you would need to save the amount that was added at the end of the process. Therefore, if a mistake were to occur you can simply call the previousAddition variable which would have that amount and subtract it from the total. This would quickly reverse the mistake, and can be easily called from the undo() method.
Answer:
Check the explanation
Explanation:
In C, int requires 4 butes to sotre a integer number. that means it requires 4*8 = 32 bits. The maximum number can be stored using 32 bits is

The first digit is used for sign. decimal equivalent to this number can be computed as

=
= 
That means int can store a up to 2147483646.
Testing with C code
#include<stdio.h>
int main()
{
int a = 2147483647; // a with max number
printf("%d\n",a);// printing max number
a = a+1;// adding one to the number
printf("%d\n",a);// printing the number after adding one
return 0;
}
THE OUTPUT
$ ./a.out
2147483647
-2147483648
Answer:
If request granted then T₁ and T₂ are in deadlock.
Explanation:
See attached image
Answers
You need a niche to start your recording for let's say commentary you'll need that for your commentary.