Answer:
The code to this question can be given as:
Code:
//define code.
//conditional statements.
if (Character.isLetter(passCode.charAt(0))) //if block
{
System.out.println("Alphabetic at 0"); //print message.
}
if (Character.isLetter(passCode.charAt(1))) //if block
{
System.out.println("Alphabetic at 1"); //print message.
}
Explanation:
In this code, we define conditional statement and we use two if blocks. In both if blocks we use isLetter() function and charAt() function. The isLetter() function checks the inserted value is letter or not inside this function we use charAt() function that checks inserted value index 1 and 2 is the character or not.
- In first if block we pass the user input value and check the condition that if the inserted value is a character and its index is 0 so, it will print Alphabetic at 0.
- In second if block we pass the user input value and check the condition that if the inserted value is a character and its index is 1 so, it will print Alphabetic at 1.
They will spin in the opposite direction because the belts are twisted.
Answer: Security (updating of software and hardware)
Explanation:
Internet of Things is one of the latest inventions in technology wherein smart objects and devices can connect to the internet and also share information within that space.
One of the several challenges of the Internet of Things is Security. Because of the introduction of the Internet, there is a vulnerability to hacking. Upgrades, therefore ought to be regularly provided so as to prevent hackers from recognizing patterns and hacking into them. So when the device outlives the manufacturer, there would be no one to provide regular updates thus making the device vulnerable.
Answer:
10
Explanation:
An enqueue operation is a function that adds an element(value) to a queue array. A dequeue operations removes an element from a queue array. Queue arrays follow a first-in-first-out approach, so elements that are first stored in the queue are removed/accessed first(enqueue operations add elements at the rear of the queue array).
The following operations leave 10 elements in the queue of array size 12 after its done:
10 enqueue operations= adds 10 elements
5 dequeue operations= removes 5 elements( 5 elements left in queue)
6 enqueue operations= adds 6 elements(11 elements in queue)
10 dequeue operations= removes 10 elements(1 element left in queue)
8 enqueue operations= adds 8 elements(9 elements in queue)
2 dequeue operations= removes 2 elements(7 elements left in queue)
3 enqueue operations= adds 3 elements(10 elements in queue)
Therefore there are 10 elements in the queue after enqueue and dequeue operations.
