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<\/p>\n<\/p>\n
A String in C is basically a sequence of characters\/symbols which is terminated with a null character \\0. <\/p>\n<\/p>\n
E.g., char str = \u201cthis is a string\u201d<\/p>\n
Let us see how to declare a string in C.<\/strong> Well, each of the characters are stored in a position contiguously. So, if we find out the length of the string then we can simply use a for loop to iterate through the elements of the string. We use strlen() function of string header file in C to get the length of our string.<\/p>\n Now when we know to write basic program lets see an example \u2013<\/p>\n Suppose we are given a string and we want to find the number of spaces in the string.
\nDeclare string variable<\/p>\nchar str[16] = "This is a string" \nchar str[] = "This is a string" <\/code><\/pre>\nTaking Inputs –<\/h3>\n
\n
\nchar str[30] ; scanf(%s,\u201dThis is a string\u201d)<\/em>
\nThis function is useful only when our string does not contain any spaces. In the above statement only \u201cThis\u201d will be taken from the user.<\/li>\nCode Implementation –<\/h4>\n
#include <stdio.h>\nint main(void) {\n \/\/ char str[30];\n \/\/ scanf("%s",str);\n \/\/ printf("%s",str);\n char str1[30];\n fgets(str1,sizeof(str1), stdin);\n puts(str1); \/\/prints the string\n return 0;\n}\nOutput: This is a string<\/code><\/pre>\nAccessing each elements of a string in C<\/h3>\n
Code Implementation \u2013<\/h4>\n
#include <stdio.h>\n#include <string.h>\nint main(void) {\n char str[30];\n fgets(str,sizeof(str), stdin);\n \/\/acessing each elements of the string\n for(int i = 0;i<strlen(str);i++)\n printf("%c",str[i]);\n return 0;\n}<\/code><\/pre>\n
\nThe idea is to iterate over the string elements and whenever we get a \u2018(space) \u2018character we increase our count.<\/p>\nCode Implementation \u2013<\/h4>\n
#include <stdio.h>\n#include <string.h>\nint main(void) {\n char str[30];\n fgets(str,sizeof(str), stdin);\n int count = 0;\n \/\/acessing each elements of the string\n for(int i = 0;i<strlen(str);i++)\n {\n if(str[i] == ' ')\n count++;\n }\n printf("%d", count);\n return 0;\n} <\/code><\/pre>\n