The program is an illustration of loops.
Loops are used to perform repetitive and iterative operations.
The program in Python where comments are used to explain each line is as follows:
#This intializes the list
nums = [5,4,4,2,1]
#This gets the length of the list
size = len(nums)
#This iterates through the list
for i in range(size):
#The following if condition determines the repeating number
if nums[abs(nums[i])-1] > 0:
nums[abs(nums[i])-1] = -nums[abs(nums[i])-1]
else:
repeating = abs(nums[i])
#The following if condition determines the missing number
if nums[i]>0:
missing = i + 1
#This calculates and prints the sum of the missing and the repeating numbers
print(repeating+missing)
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Answer:
Scanner can be used to read tokens from the console window (user input)
Explanation:
Scanner is a class used in some programming languages to obtain inputs from users.
It is mostly well developed in Java programming language and used exclusively for taking and obtaining inputs.
Scanner takes input in primitive types such as doubles, floats and integers. IT also takes string inputs.
Here is a code snippet where the class scanner is used:
Scanner input = new Scanner (System.in)
The code above creates an object of the scanner class
The tab that you would use is review
Answer:
The answer is 15
Explanation:
A integer is a whole number, the only wholenumber present is 15
Hope this helps :)
Answer:
Option (B) is the correct answer to the following questions.
Explanation:
The following option is correct because the binary scope operator is used to define the global variable only when the local variable has also the same name and we want to use global variable also or we also use scope operate when we do not want to use any function inside the class.
The following option (A) is wrong because we not always required binary scope operator and the option (C) is wrong because we cannot use the scope operator anywhere and the option (d) is already wrong because that binary scope operator would not be used in the function prototype.