String

Strings is a set of several consecutive characters ; each character can be represented in C language by a CHAR data type . This means that string value can be represented by an array of CHAR.

Example 1 : You can put string in too many forms like below. 

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#include <stdio.h> #include <stdlib.h> int main() { char string1[] = {'h','e','l','l','o',0}; char string2[]="hello"; char string3[]={"hello"}; printf("string1=%s\n",string1); printf("string2=%s\n",string2); printf("string3=%s\n",string3); return 0; }

Output : 

Example 2 : (Scan & Print ) Implement C code that take a name and print it by using Strings.

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#include <stdio.h> #include <stdlib.h> int main() { char name[20] ; printf("Please Enter Your Name \n"); scanf("%s",name); printf("Your name is %s\n",name); return 0; }

Output : 

Example 3 : Print Array of Strings 

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#include <stdio.h> #include <stdlib.h> int main() { int i ; char name[4][20] = {"ahmed","Nyang","Karim","Ronlado"} ; for (i=0;i<4;i++){ printf(" %s\n",name[i]); } return 0; }

Output 

Example 4 : Copy string to string 

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#include <stdio.h> #include <stdlib.h> #include<string.h> int main() { char name1[20] = {"Max John"} ; char name2[20] ; strcpy(name2,name1); printf("name1=%s\n",name1); printf("name2=%s\n",name2); return 0; }

Output : 

Example 5 : Adding string to string 

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#include <stdio.h> #include <stdlib.h> #include<string.h> int main() { char name1[20] = {"Max "} ; char name2[20] = {"John"} ; strcat(name2," "); strcat(name2,name1); printf("Name1=%s\n",name1); printf("Name2=%s\n",name2); return 0 ; }

Output : 

Example 6 : Change String Case 

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#include <stdio.h> #include <stdlib.h> #include<string.h> int main() { char name1[20] = {"Max "} ; char name2[20] = {"John"} ; strlwr(name1); strupr(name2); printf("Name1=%s\n",name1); printf("Name2=%s\n",name2); return 0 ; }

Output :

Example 7 : Finding The Length OF String 

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#include <stdio.h> #include <stdlib.h> #include<string.h> int main() { char name1[20] = {"Max"} ; printf("Length of Name1 is =%d\n",strlen(name1)); return 0 ; }

Output :

Example 8 : Converting String to Integer Value 

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#include <stdio.h> #include <stdlib.h> #include<string.h> int main() { char a[20] ={"10Max"}; char b[20] = {"John9"}; int x , y , z; x=atoi(a); y=atoi(b); z=x+y; printf("Summation =%d\n",z); return 0 ; }

Output : 

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