Answer:
A
Explanation:
strBuf.charAt(strBuf.length() - 1)
Answer:b)via radio signals
Explanation: Machine-to-machine technology is the technology that helps in sharing of the real time information of the device that have embedded sensor.They can work without the help of the manual factors.
The data is shared through the help of the radio signals in the devices like turbines vending machines etc for the tracking purpose and managing.
Thus the other options are incorrect because short distance is a disttance, cloud services are for the collection of services and databases contains the data. So, the correct option is option (b).
Answer:
See explaination
Explanation:
//Array to store prices
INT PRICE[10][10]
//Loop through 2d array
FOR I FROM 0 TO 10
FOR J FROM 0 TO 10
//Populate a random int
PRICE[I][J] = RANDOM_INT(99,1999)
PRINT(PRICE[I][J]+" ")
PRINT()
//Prompt user for desired price
COST = READ_INPUT('Please enter your desired flight price: ')
//Variable to store if a match is found
MATCH = FALSE
//Loop through all ints in price
FOR I FROM 0 TO 10
FOR J FROM 0 TO 10
//Compare price with Cost
IF PRICE[I][J]==COST
MATCH = TRUE
BREAK
//Check if match is true
IF MATCH = TRUE
PRINT('A flight was found for that price, have a safe trip!')
ELSE
PRINT('No flight was found for that price, please try a new price.')
Answer:
B
Explanation:
This question demonstrates the concept of method overloading
Method overloading means having different versions of the same method. In this case the method mystery() has three versions. The compiler is able to determine which method to call by their different parameters
The first implementation of mystery requires an array of integers as parameter
The second implementation requires an int variable
The third implementation requires a String
The Method call mystery(6 * 8) will output B because 6*8 evaluates to an integer which is the expected argument.
Answer:
2. A data modelling project using a packaged data model REQUIRES A GREATER SKILL than a project not using a packaged data model.
Explanation:
1a. Review of universal models:
A data model is an abstract model that organizes elements of data and standardizes how they relate to one another and to the properties of real world entities. It has become the standard approach used towards designing databases.
A universal data model is a template data model that can be reused as a starting point or a building block to jump-start development of a data modelling project, industry specific model, logical data models.
1b. Discuss how these are being used more widely today.
*Universal data models helps professional reduce development time, improve consistency and standardization while achieving high quality models.
*Higher quality: just as architects consider blue prints before constructing a building, one should also consider data before building an app. A data model helps define the problem, enabling one to consider different approaches and choose best ones.
*By properly modelling and organization's data, the database designer can eliminate data redundancies (needless repetitions) which are a key source for inaccurate information and ineffective systems.
2. Greater and advanced skills are adequate and required when data modelling project is done using packaged data model while fewer skills are required when data modelling is done without packaged data model.
