ALGORITMA PEMROGRAMAN

1. fungsi string (strlen)\\Menghitung panjang string

#include <iostream>

#include <string>

int main(){

char s[] ="ABCDEFG";

cout<<"strlen("<<s<<")="<<strlen (s)<<endl;

cout<<"strlen(\"\")= "<<strlen(" ")<<endl;

char buffer[80];

cout<<"masukkan string:";

cin>>buffer;

cout<<"strlen("<<buffer<<")= "<<strlen(buffer)<<endl;

return 0;

}

2. fungsi string (strncpy)\\Menyalin sebuah string ke string lain

#include <iostream>

#include <string>

int main(){

int i;

char s1[] ="ABCDEFG";

char s2[] ="XYZ";

cout<<"sebelum strncpy (s1, s2, 2) : \n";

cout<<"\ts1 = ["<<s1<<"], panjang="<<strlen(s1)<<endl;

cout<<"\ts1 = ["<<s2<<"], panjang="<<strlen(s2)<<endl;

strncpy(s1, s2, 2);

cout<<"sesudah strncpy (s1, s2, 2) : \n";

cout<<"\ts1 = ["<<s1<<"], panjang="<<strlen(s1)<<endl;

cout<<"\ts1 = ["<<s2<<"], panjang="<<strlen(s2)<<endl;

cin>>i;

return 0;

}

3. fungsi string (strcat)\\Menggabung dua buah string

#include <iostream>

#include <string>

int main(){

int i;

char s1[] ="ABCDEFG";

char s2[] ="XYZ";

cout<<"sebelum strcat (s1, s2) : \n";

cout<<"\ts1 = ["<<s1<<"], panjang="<<strlen(s1)<<endl;

cout<<"\ts1 = ["<<s2<<"], panjang="<<strlen(s2)<<endl;

strcat(s1, s2);

cout<<"sesudah strcat (s1, s2) : \n";

cout<<"\ts1 = ["<<s1<<"], panjang="<<strlen(s1)<<endl;

cout<<"\ts1 = ["<<s2<<"], panjang="<<strlen(s2)<<endl;

cin>>i;

return 0;

}

4. fungsi string (strncat)

#include <iostream>

#include <string>

int main(){

int i;

char s1[] ="ABCDEFG";

char s2[] ="XYZ";

cout<<"sebelum strncat (s1, s2, 2) : \n";

cout<<"\ts1 = ["<<s1<<"], panjang="<<strlen(s1)<<endl;

cout<<"\ts1 = ["<<s2<<"], panjang="<<strlen(s2)<<endl;

strncat(s1, s2, 2);

cout<<"sesudah strncat (s1, s2, 2) : \n";

cout<<"\ts1 = ["<<s1<<"], panjang="<<strlen(s1)<<endl;

cout<<"\ts1 = ["<<s2<<"], panjang="<<strlen(s2)<<endl;

cin>>i;

return 0;

}

5. fungsi string (strtok)

#include <iostream>

#include <string>

int main(){

int i;

char s1[] ="Sesungguhnya yang batil itu akan lenyap";

cout<<"s= ["<<s<<"]"<<endl;

cout<<"tokennya adalah"<<endl;

char*p=strtok( s, " ");

while (p){

cout<<"\t["<<p<<"]"<<endl;

p=strtok(NULL, " ");

}

cout<<"sekarang s=["<<s<<"]"<<endl;

return 0;

}

6.fungsi string(strcmp)\\Membandingkan dua buah string

#include <string.h>

#include <stdio.h>

int main(void)

{

char *buf1 = "aaa", *buf2 = "bbb", *buf3 = "ccc";

int ptr;

ptr = strcmp(buf2, buf1);

if (ptr > 0)

printf("buffer 2 is lebih besar dari buffer 1\n");

else

printf("buffer 2 is lebih kecil dari buffer 1\n");

ptr = strcmp(buf2, buf3);

if (ptr > 0)

printf("buffer 2 is lebih besar dari buffer 3\n");

else

printf("buffer 2 is lebih kecil dari buffer 3\n");

return 0;

}

7.fungsi string(strlwr)\\Mengubah huruf besar menjadi huruf kecil pada sebuah string

#include <stdio.h>

#include <string.h>

int main(void)

{

char *string = "POLITEKNIK KEDIRI";

printf("Kalimat sebelum proses strlwr: %s\n", string);

strlwr(string);

printf("Kalimat setelah proses strlwr: %s\n", string);

return 0;

}