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2 years ago

Write a statement that defines an ifstream object named inputFile and opens a file named "Friends.txt".

Computers and Technology

1 answer:

Simora [160]2 years ago

5 0

Answer:

ifstream inputFile;

inputFile.open("Friends.txt");

Explanation:

Though, the programming language is not stated, questions like this are often from C++.

The first statement defines the ifstream object using the following syntax.

ifstream [object_name]

In this case, the object name is inputFile

So, the syntax becomes

ifstream inputFile;

The next line opens a file using the following syntax.

[object_name].open("Filename")

Here, object_name is inputFile and filename is Friends.txt

So, the open statement becomes

inputFile.open("Friends.txt")

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Answer:

CLS

M=2

SUM=0

DO WHILE M<=50

SUM=SUM+M

M=M+2

LOOP

PRINT " The sum of all even numbers between 1 and 50 is"; sum

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3 years ago

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3 years ago

Write a C program that reads two hexadecimal values from the keyboard and then stores the two values into two variables of type

sattari [20]

Solution :

#include $$$$

//Converts $\text{hex string}$ to binary string.

$\text{char}$ * hexadecimal $\text{To}$ Binary(char* hexdec)

{

long $\text{int i}$ = 0;

char *string = $(\text{char}^ *) \ \text{malloc}$ (sizeof(char) * 9);

while (hexdec[i]) {

//Simply assign binary string for each hex char.

switch (hexdec[i]) {

$\text{case '0'}:$

strcat(string, "0000");

break;

$\text{case '1'}:$

strcat(string, "0001");

break;

$\text{case '2'}:$

strcat(string, "0010");

break;

$\text{case '3'}:$

strcat(string, "0011");

break;

$\text{case '4'}:$

strcat(string, "0100");

break;

$\text{case '5'}:$

strcat(string, "0101");

break;

$\text{case '6'}:$

strcat(string, "0110");

break;

$\text{case '7'}:$

strcat(string, "0111");

break;

$\text{case '8'}:$

strcat(string, "1000");

break;

$\text{case '9'}:$

strcat(string, "1001");

break;

case 'A':

case 'a':

strcat(string, "1010");

break;

case 'B':

case 'b':

strcat(string, "1011");

break;

case 'C':

case 'c':

strcat(string, "1100");

break;

case 'D':

case 'd':

strcat(string, "1101");

break;

case 'E':

case 'e':

strcat(string, "1110");

break;

case 'F':

case 'f':

strcat(string, "1111");

break;

default:

printf("\nInvalid hexadecimal digit %c",

hexdec[i]);

string="-1" ;

}

i++;

}

return string;

}

int main()

{ //Take 2 strings

char *str1 =hexadecimalToBinary("FA") ;

char *str2 =hexadecimalToBinary("12") ;

//Input 2 numbers p and n.

int p,n;

scanf("%d",&p);

scanf("%d",&n);

//keep j as length of str2

int j=strlen(str2),i;

//Now replace n digits after p of str1

for(i=0;i<n;i++){

str1[p+i]=str2[j-1-i];

}

//Now, i have used c library strtol

long ans = strtol(str1, NULL, 2);

//print result.

printf("%lx",ans);

return 0;

}

4 0

2 years ago

Jim is a forensic specialist. He seized a suspect computer from a crime scene, removed the hard drive and bagged it, documented

Andreyy89

Answer: Jim left the computer unattended while shopping for supplies to be used at the next crime scene.

Explanation: While transporting the evidence to a secure location (lab), he left the computer unattended in his car and goes shopping for supplies that will be used in his next crime scenes. This act will give the criminals or their accomplice the opportunity to break into his car and tamper with what ever evidence he might have left behind in his car.

7 0

3 years ago

What does obsolete mean?

Alex

No longer produced or used; out of date.

8 0

2 years ago

Read 2 more answers