[1] Renaming data types
Instead of using the predefined keywords for a certain type of data, we can customize its name according to the requirement of the program. It is achieved using the typedef keyword.
Eg. typedef int number;
Now all integer type variable can be declared using number x instead of int x.
[2] Enumeration
An enumeration is a data type that contains integral constants. In other words, a variable declared as enum type can only hold a limited amount of values as specified during declaration. The keyword enum is used.
Eg. enum week {Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday};
enum week x;
Now, x can only hold values which correspond to the seven days of the week.
[3] Structures
A structure is a user-defined data type that comprises of (or encapsulates) multiple data types and can be used as a singular entity. The struct keyword is used.
Eg. struct struct_name{
int x;
char y;
} var1, var2;
Here, var1 and var2 are variables of type struct_name and can hold one integer and one character each.
[4] Union
A union allows us to reuse the same memory location to store different types of data. It can have multiple data members but only one can hold a value a time. The union keyword is used to declare the union and its members are accessed using the . (dot) operator.
Eg. union union_name {
int i;
float f;
}var1;
Now var1 can either hold I or f but not both. If we assign multiple values, only the latest will be stored in memory.
[5] Bit-fields
Bit-fields are used to specify the maximum number of bits that can be occupied by a given variable. These are used to make a program more memory efficient.
Eg. int x:3;
Here x can only hold values that can be represented using three bits, ie, 000 to 111 (0 to 7 in decimal).
C supports user-defined data types. Explain the following data type features of the C language and...
You are asked to define a user-defined data type for students, that will contain the following information about a student: ID number, first name, last name, major, GPA. Your structure should be cal Student. Based on the defined structure, user name on the command line, show how you will use a loop to search for the given name within the array of 5 students. use an array to record information about 5 students. Then, given a Write a C program...
First, review your C language data types Learn how to use the strtok() function in C language. There are plenty of examples on the Internet. Use this function to parse both an example IP address, eg. 192.168.1.15, into four different strings. Next use the atoi() function to convert these into four unsigned char's. (Hint: you will need to typecast, eg unsigned char X-(unsigned char)atoi("234"); Now, if you view a 32 bit number in base 256, the right most column would...
kindly write it in c++. help me understand what
encapsulation and data hiding as you write the code.
QUESTION 4 C++ supports the properties of encapsulation and data hiding through the creation of user-defined types, called classes. Write a portion of a code declares and implements a class of your choice and the implementation of two of its possible methods to demonstrate the concepts of encapsulation and data hiding. [10 marks]
What are the two types of data generally associated with needs assessment? Explain each type of data as well as provide an example of each.
In C language, please use at least one user
defined function, and show data validity check for != integers
3) Write a program to find whether a given number is a Palindrome number (number that is same when you read from forward or backward). You need to take a long integer number from user as input and verify whether it's a number and positive or not. If the input is not valid (e.g., string or float) or positive, then notify...
Write a code in C language to do following: 1. display pin input by user in **** form instead of numbers by using ncurses 2. verify the pin by comparing with already stored 2 pins in a text file 3. change text color as per user choice WINDOWS BASED
Write a code in C language to do following: 1. display pin input by user in **** form instead of numbers by using ncurses 2. verify the pin by comparing with already stored 2 pins in a text file 3. change text color as per user choice WINDOWS BASED
Function / File Read (USING MATLAB) A) create a user-defined function : [maxsample , maxvalue , numsamples]=writetofile(sname,strgth) to do the following: The user-defined function shall: -Accept as the input a provided string for the sample name (sname) and number for strength (strgth) - open a text file named mytensiledata.txt, with permission to read or append the file. - Make sure to capture any error in opening the file - Write sname and strgth to the file - Close the file...
Q 4(b) 6 Marks] Write the code for a single Java class of your own choice that demonstrates the use of the following features in the Java language: Method overloadingg The use of super and this Identify clearly where in your code each of these points is being demonstrated Q 4(c) [6 Marks] Write an abstract Student class in Java which has a name, id_number, year and programme_code as member variables. Add a constructor to your class and a display()...
Urgent
For each description below, identify the VMM implementation or type that it describes a. Applications that run on standard operating systems and provide VMM features to guest Operating Systems b. Operating-System-like software built to provide virtualization c. Can provide virtualization-within virtualization Some VMs support "Virtual User Mode" and "Virtual Kernel Mode". If the underlying CPU only supports User and Kernel modes, in which of these two modes do each of the following execute: 1. 2. A Guest Os a....