INTERVIEW QUESTIONS C STRINGS IN C DETAILS

Question: How do you print only part of a string?

Answer: /* Use printf() to print the first 11 characters of source_str. */

printf(“First 11 characters: ‘%11.11s’n”, source_str);

/* Use printf() to print the first 11 characters of source_str. */

printf(“First 11 characters: ‘%11.11s’n”, source_str); Source: CoolInterview.com

by using extract method we can extract a part from the string
strextract(3,7) Source: CoolInterview.com

int i=0,j=0,p;
char *s;
printf("Enter the String");
scanf("%s",&s);
printf("
Enter the start and end of the string: ");
scanf("%d %d",&i,&j);
for(p=i;p<=j;p++)
{
printf("%c",*(s+p);
}
getch()
} Source: CoolInterview.com

Another solution would be to use strncpy() to copy the part of the string and print it. Below is the code snippet.

int main()
{
char a1[20];
char a2[20];

strcpy(a1,"HelloWorld");
printf("%s
",a1);

strncpy(a2,a1,5);
printf("%s
",a2);

}
Source: CoolInterview.com

The following is much simpler method of printing part of a string.

int main(void)
{
char *ptr = "This is a test string";

/* partial string printing */
printf("String = %s
", &ptr[10]);
return 0;
}

This prints: "test string"

Source: CoolInterview.com

#include"string.h"
void main()
{
int st_index;
int end_index;
char *str;
char* substr(char*,int,int);
printf("enter string");
scanf("%s",str);
printf("enter start index and end index:");
scanf("%d %d",&st_index,&end_index);
printf("the substring is: %s",substr(str,st_index,end_index));
//end of main
}
//function definition
substr(char *temp,int temp1,int temp2)
{
int i,j=0;
char *substr;
for(i=temp1;i<=temp2;i++)
*substr[j++]=*temp[i];
*substr[j+1]='/0';
return substr;
}







} Source: CoolInterview.com

#include<stdio.h>
main()
{
char str[20];
printf("enter the string");
gets(str);
/*the following code prints the string with leaving 5 charaters from starting*/
printf(+5"%c",str);
} Source: CoolInterview.com

i am sending correct code

main()
{
int i,j,p;
char r[20];
printf("Enter the String");
scanf("%s",&r);
char* s;
s=r;
printf("Enter the start and end of the string: ");
scanf("%d %d",&i,&j);
for(p=i;p<=j;p++)
{
printf("%c",*(s+p));
}
getch();
} Source: CoolInterview.com

void spart(char*,int,int);
main()
{
int i,j,p;
char str[20];
printf("Enter the String ");
gets(str);
printf("Enter the start and end of the string: ");
scanf("%d %d",&i,&j);
spart(str,i,j);
getch();
}

void spart(char*p,int x,int y)
{
int z;
for(z=x;z<=y;z++)
printf("%c",*(p+z));
} Source: CoolInterview.com

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