C program to print character array

C program to print character array


Output:

Printing the character array:
C o d e R e g i s t e r

Implementation:

/* Initializing the character array statically: method 1*/ #include <stdio.h> #define MAX 1000000 /* Depending on compiler you're using, change the size here */ int main(void) { char ch[MAX]="CodeRegister"; int i; printf("Printing the character array:\n"); for(i=0;ch[i]!='\0';i++) { printf("%c ",ch[i]); } return 0; }

Consider the following other implementations of the same problem:

Implementation 1:

/* Initializing the character array statically */ #include <stdio.h> #define MAX 1000000 /* Depending on compiler you're using, change the size here */ int main(void) { /* you can initialize like this also , see the ending null character manually given */ char ch[MAX]={'C','o','d','e','R','e','g','i','s','t','e','r','\0'}; int i; printf("Printing the character array:\n"); for(i=0;ch[i]!='\0';i++) { printf("%c ",ch[i]); } return 0; }

Output 1:

C o d e R e g i s t e r

Implementation 2:

/* Getting the character array values from the user dynamically */ #include <stdio.h> #define MAX 1000000 /* Depending on compiler you're using, change the size here */ int main(void) { char ch[MAX]; int i=0; printf("Enter the Characters of character array(do not leave spaces between characters):\n"); while(scanf("%c",&ch[i++])>0); printf("The character array you entered is:\n"); for(i=0;i<strlen(ch);i++) { printf("%c",ch[i]); } return 0; }

Output 2:

Enter the Characters of character array(do not leave spaces between characters):
www.coderegister.in
The character array you entered is:
www.coderegister.in

Implementation 3:

/* Character array using string format specifier */ #include <stdio.h> #define MAX 1000000 /* Depending on compiler you're using, change the size here */ int main(void) { char ch[MAX]; int i=0; printf("Enter the character array:\n"); scanf("%s",ch); printf("The character array you entered is:\n"); for(i=0;i<strlen(ch);i++) { printf("%c",ch[i]); } return 0; }

Output 3:

Enter the character array:
www.coderegister.in
The character array you entered is:
www.coderegister.in

Implementation 4:

/* Allocating memory dynamically */ #include <stdio.h> int main(void) { char *ch; int i=0,size; printf("Enter the size of the character array(no.of.chars + null character):\n"); scanf("%d",&size); ch=(char*)malloc(sizeof(char)*size); printf("Enter the character array:\n"); scanf("%s",ch); printf("The character array you entered is:\n"); for(i=0;i<strlen(ch);i++) { printf("%c",ch[i]); } return 0; }

Output 4:

Enter the size of the character array(no.of.chars + null character):
20
Enter the character array:
www.coderegister.in
The character array you entered is:
www.coderegister.in

Implementation 5:

/* using gets & puts */ #include <stdio.h> #define MAX 1000000 int main(void) { char ch[MAX]; printf("Enter the character array:\n"); gets(ch); printf("The character array you've entered is "); puts(ch); return 0; }

Output 5:

Enter the character array:
www.coderegister.in
The character array you've entered is www.coderegister.in

Implementation 6:

/* using getc & putc */ #include <stdio.h> #define MAX 1000000 int main(void) { char ch[MAX]; int i=0; printf("Enter the character array:\n"); while(scanf("%c",&ch[i++])>0); printf("Printing the character array:\n"); for(i=0;ch[i]!='\0';i++) { putc(ch[i],stdout); } return 0; }

Output 6:

Enter the character array:
www.coderegister.in
Printing the character array:
www.coderegister.in

Implementation 7:

/* using pointers */ #include <stdio.h> #define MAX 1000000 /* change the size of character array here */ int main(void) { char *ch; int i=0; ch=(char*)malloc(sizeof(char)*MAX); printf("Enter the character array:\n"); scanf("%s",ch); printf("Printing the character array using pointers:\n"); while(*(ch+i)) { printf("%c",*(ch+i)); i++; } return 0; }

Output 7:

Enter the character array:
www.coderegister.in
Printing the character array using pointers:
www.coderegister.in