[SOLVED] In Linux using by C++

1) Try below and explain why we have an error.

char *y;

y=”hello”; // this is ok

strcpy(y, “hello”); // this is an error

2) Define a character pointer array and store/display strings as below.

char * x[10];

x[0]=”hi”; x[1]=”bye”; x[2]=”hello”;

printf(“%s %s %s\n”, x[0],x[1],x[2]);

3) Read the same sentence with gets() and fgets() and explain the difference.

char x[100];

printf(“enter a sentence\n”);

gets(x);

int slen=strlen(x);

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

printf(“%x “, x[i]);

}

printf(“\nenter the same sentence\n”);

fgets(x, 100, stdin);

slen=strlen(x);

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

printf(“%x “, x[i]);

}

4) Use strtok to extract words from a sentence and store them in an array. Display the number of words as below. Use as many functions as possible to split your program into small pieces.

algorithm:

read a line

tokenize

display tokens

Enter a sentence

aa bcd e e ff aa bcd bcd hijk lmn al bcd

You entered aa bcd e e ff aa bcd bcd hijk lmn al bcd

There were 12 words:

aa

bcd

e

e

ff

aa

bcd

bcd

hijk

lmn

al

bcd

The original sentence was: aa bcd e e ff aa bcd bcd hijk lmn al bcd