To compare any two string first we need to find length of each string and then compare both strings. If both string have same length then compare character by character of each string.
Compare two strings in C++
#include<iostream.h> #include<stdio.h> #include<conio.h> void main() { char str1[20],str2[20],i,j,flag=0; clrscr(); cout<<"Enter first string: "; gets(str1); cout<<"Enter Second string: "; gets(str2); i=0; j=0; while(str1[i]!='\0') { i++; } while(str2[j]!='\0') { j++; } if(i!=j) { flag=0; } else { for(i=0,j=0;str1[i]!='\0',str2[j]!='\0';i++,j++) { if(str1[i]==str2[j]) { flag=1; } } } if(flag==0) { cout<<"Strings are not equal"; } else { cout<<"Strings are equal"; } getch(); }
Output
Enter First String : rajess Enter Second String : rajesh Strings are not equal
