7. (A) String operations for string length , string concatenation

7. (A) String operations for string length , string concatenation

	#include<iostream.h> #include<conio.h>
	int find_length(char string[])
	{
	int len=0,i;
	for(i=0;string[i]!='\0';i++)
	{
	len++;
	}
	return len;
	}
	void join_strings(char string1[],char string2[])
	{
	int i,len1,len2;
	len1=find_length(string1);
	len2=find_length(string2);
	for(i=len1;i<=len1+len2;i++)
	{
	string1[i]=string2[i-len1];
	}
	string1[i]='\0';
	}
	int main()
	{
	clrscr();
	char string1[20],string2[20];
	int choice;
	cout<<"\n1.Find length \n2.concatenate \n";
	cout<<"Enter your choice:";
	cin>>choice;
	switch(choice)
	{
	case 1:
	cout<<"\n Enter the string:";
	cin>>string1;
	cout<<"\n The length of string is:"<<find_length(string1);
	break;
	case 2:
	cout<<"\n Enter two strings:";
	cin>>string1>>string2;
	join_strings(string1,string2);
	cout<<"\n The concatenated string is:"<<string1;
	break;
	}
	return 0;