All categories

3 years ago

(In C prog.) What is the difference between scanf, getche and getchar?

1 answer:

7 0

getchar() only reads a single character input from any input stream.
getche() reads a single character from the keyboard and displays immediately on output screen without waiting for enter key
scanf() reads the whole input line according to the data type you specified.

You might be interested in

Write a program that prompts the user for an integer, then asks the user to enter that many values. Store these values in an arr

Svetllana [295]

Answer:

//The Scanner class is imported to allow the program receive user input

import java.util.Scanner;

//The class Solution is defined

public class Solution {

//The main method is defined here and signify the beginning of program execution

public static void main(String args[]) {

//Scanner object 'scan' is created to receive user input

Scanner scan = new Scanner(System.in);

//Prompt display to the user to enter size of array

System.out.print("Enter the range of array: ");

//User input is assigned to arraySize

int arraySize = scan.nextInt();

//userArray is initialized with arraySize as its size

int[] userArray = new int[arraySize];

//counter to count number of array element

int count = 0;

//while loop which continue executing till the user finish entering the array element

while (count < arraySize){

System.out.print("Enter each element of the array: ");

userArray[count] = scan.nextInt();

count++;

}

//A blank line is printed for clarity

System.out.println();

//for loop to print each element of the array on straight line

for(int i =0; i <userArray.length; i++){

System.out.print(userArray[i] + " ");

}

//A blank line is printed for clarity

System.out.println();

//for loop is use to reverse the array in-place

for(int i=0; i<userArray.length/2; i++){

int temp = userArray[i];

userArray[i] = userArray[userArray.length -i -1];

userArray[userArray.length -i -1] = temp;

}

//for loop to print each element of the reversed array on straight line

for(int i =0; i <userArray.length; i++){

System.out.print(userArray[i] + " ");

}

Explanation:

The program is commented to give detailed explanation.

The for-loop use in reversing the array works by first dividing the array into two half and exchanging the first half elements with the second half elements. The element from the first half is assigned to temp variable on each loop, then the element is replaced with the equivalent element from the second half. And the element from the second half is replaced with the value of temp.

3 0

3 years ago

Look at the logic program below. Set a breakpoint after each commented instruction. You can also single step through the program

Goshia [24]

Using programming knowledge, it is possible to use programming logic, we can differentiate and find the terms

<h3>Writing the code and understanding the programming logic:</h3>

.data

sourceword:

.word 0xAB

wordmask:

.word 0xCF

operand:

.long 0xAA

.text

.globl _start

_start:

movw sourceword, %ax # ax=0x00AB ( move the word value of sourceword =0x00AB to ax register.)

movw %ax, %bx # bx=0x00AB ( copy the value of ax to bx register.)

xorw %cx, %cx # cx=0000 ( cx=cx XOR cx, that is clear cx register.)

andw wordmask, %ax # ax=0x008B ( ax=ax AND wordmask= 0x00AB AND 0x00CF= 0x008B)

orw wordmask, %bx # bx=0x00EF (bx=bx OR wordmask= 0x00AB OR 0x00CF= 0x00EF.)

xorw wordmask, %cx # cx=0x00CF (cx=cx XOR wordmask= 0x0000 XOR 0x00CF=0x00CF.)

movl operand, %eax # eax=0x000000AA. ( copy the 32-bit value of operand=0x000000AA to eax.)

movl %eax, %ebx # ebx=0x000000AA.( copy the value of eax to ebx.)

movl %eax, %ecx # ecx=0x000000AA. ( copy the value of eax to ecx.)

shll $3,%eax # eax=0x00000550. ( logical shift left of eax=0x000000AA by 3 bits.)

# 0x000000AA=00000000000000000000000010101010

# =>00000000000000000000010101010000=0x00000550.

rorl $4,%ebx # ebx=0xA000000A. (Rotate right ebx=0x000000AA by 4 bits.)

# 0x000000AA=00000000000000000000000010101010

3 =>10100000000000000000000000001010= 0xA000000A.

sarl %ecx # here the count value to shift the bits not mentioned.

# It is the arithmetic shift right instruction. the shifted left bits filled with MSB bit.

See more about logic program at brainly.com/question/14970713

#SPJ1

5 0

2 years ago

When a switch is closed, completing an lr series circuit, the time needed for the current to reach one half its maximum value is

uysha [10]

The answer is 0.693 . When a switch is closed, completing an LR series circuit, the time needed for the current to reach one half its maximum value is 0.693

e^(-t/T) = 0.5
-t/T = ln(0.5) = -0.693

7 0

3 years ago

Backing up and synchronization are the same thing. A.)True B.) False

Sholpan [36]

Answer: A.)true

Explanation: This is true for a number of reasons, the first being that synced files

3 0

3 years ago

A social media site violates its terms of service by selling information about its users

balu736 [363]

A company violating its terms of service by selling their user’s info is a violation of Digital Privacy

4 0

3 years ago