printf("Simple Project Showcase");
1. Educational Institute Management System { using C language }
Main Code:
#include<stdio.h>
int main()
{
int password, pass=1122, num, cnt=0;
char teacher_name[100];
printf(“\n\n<<< Welcome to IUBAT Automation Management System >>>\n\n”);
printf(“\n<<< =============================================== >>>\n\n”);
printf(“Please login first using User Name And Password: \n”);
printf(“————————————————-\n\n”);
printf(“Please Enter Your First Name: “);
scanf(“%s”, &teacher_name);
printf(“Please enter your password(1122): “);
scanf(“%d”, &password);
//Main condition…
if(password==pass)
{
printf(“\n\nYour Name: %s(Teacher)\n\n”, teacher_name);
printf(“\nPlease Choose an Option 1/2/3/4/5: \n\n”);
printf(“1. Input New Student Details.\n”);
printf(“2. Find Student Data By Roll Number.\n”);
printf(“3. Delete a Student by roll.\n”);
printf(“4. Find Register Students\n”);
printf(“5. Update information of a student\n”);
scanf(“%d”, &num);
switch(num)
{
case 1:
{
char std_name[100], std_dept[100];
int std_roll, std_class;
printf(“To Add a new student please: \n”);
printf(“Enter Name: \n”);
scanf(“%s”, &std_name);
printf(“Enter New Roll: \n”);
scanf(“%d”, &std_roll);
printf(“Enter Class: \n”);
scanf(“%d”, &std_class);
printf(“Enter Department: \n”);
scanf(“%s”, &std_dept);
printf(“\n<<< =============================================== >>>\n\n”);
if(std_roll !=0)
{
printf(“New Student Details: \n\nName: %s.\nRoll: %d.\nClass: %d th.\nDepartment: %s.\n\n”, std_name, std_roll, std_class, std_dept);
}
else
{
printf(“Invalid Roll Number”);
}
break;
}
case 2:
{
/*Here we are giving some Students details
so that without database you can try..*/
long long int std_roll=0;
printf(“Find out a student by Roll Number: \n\n”);
printf(“Enter roll Number(1/2/3/4/5: \n”);
scanf(“%llu”, &std_roll);
if(std_roll == 1)
{
printf(“Student Details: \n\n”);
printf(“Name: Sakibul Islam\n”);
printf(“Roll: 01\n”);
printf(“Department: Computer Science and Engineering\n”);
printf(“Take Course: CSC183, CSC184, English 250, Math 147\n”);
}
else if(std_roll == 2)
{
printf(“Student Details: \n\n”);
printf(“Name: Adib Chowdhury\n”);
printf(“Roll: 02\n”);
printf(“Department: Computer Science and Engineering\n”);
printf(“Take Course: CSC183, CSC184, English 250, Math 147\n”);
}
else if(std_roll == 3)
{
printf(“Student Details: \n\n”);
printf(“Name: Sabina Akbar\n”);
printf(“Roll: 03\n”);
printf(“Department: EEE\n”);
printf(“Take Course: CSC183, CSC184, English 250, Math 147\n”);
}
else if(std_roll == 4)
{
printf(“Student Details: \n\n”);
printf(“Name: Mahedi Hasan\n”);
printf(“Roll: 04\n”);
printf(“Department: BBA\n”);
printf(“Take Course: CSC183, CSC184, English 250, Math 147\n”);
}
else if(std_roll == 5)
{
printf(“Student Details: \n\n”);
printf(“Name: Shakil Matbar\n”);
printf(“Roll: 05\n”);
printf(“Department: Nursing\n”);
printf(“Inrolled Courses: CSC183, CSC184, English 250, Math 147\n”);
}
else
{
printf(“Student not found. Please try again and enter 1 to 5 any number…\n”);
}
break;
}
case 3:
{
//Delete a student by roll and print rest of the students roll..
int std_roll=0;
printf(“To delet a student please enter roll number: “);
scanf(“%d”, &std_roll);
printf(“Total student 30. But %d has been deleted successfully. Now rest of the students are: \n”, std_roll);
for(int i=1; i<=30; i++)
{
if(i==std_roll)
{
continue;
}
printf(“%d\n”, i);
}
break;
}
case 4:
{
//Find-out the registered students:
int roll;
printf(“Please enter the roll or ID to find register of not: “);
scanf(“%d”, &roll);
int reg_std[]={1,2,3,4,5,6,10,15,25,26};
int cnt=0;
for(int i=0; i<10; i++)
{
if(reg_std[i]==roll)
{
cnt++;
break;
}
}
if(cnt==1)
{
printf(“\n\nYaahoo..! It is registered ID\n\n”);
}
else
{
printf(“\n\nUnregistered..!\n\n”);
}
break;
}
case 5:
{
char std_name[]=”Abir Mahmud”, std_email_1[]=”abirmahmud3199@gmail.com”, std_mail[100];
int roll=0;
printf(“Please enter roll number: “);
scanf(“%d”, &roll);
if(roll==1)
{
printf(“\nName: %s\n”, std_name);
printf(“\nEmail: %s\n\n”, std_email_1);
}
printf(“Please enter New Email for this student: “);
scanf(“%s”, &std_mail);
printf(“\nNew Email address has been updated…!\n\n”);
printf(“\nName: %s\n”, std_name);
printf(“\nEmail: %s\n”, std_mail);
break;
}
//End Case
default:
{
printf(“Invalid Information\n”);
}
}
}
else
{
printf(“Invalid Password..!”);
}
printf(“\n\nThank you for using IUBAT automation system…Good Luck..!\n\n”);
return 0;
}
2. Bank/ATM - Management System { using C language }
Main Code:
#include<stdio.h>
int main()
{
//Declare some variable to using later:
printf(“\n”);
printf(“##### Welcome to Dutch Bangla ATM Service ##### \n\n”);
int num, amount, payment, password, pass=1122;
long long int phone=0, account=0, acc=11223344, account_recv=0;
char name[100];
printf(“Enter Your Name(Write the name as First_last otherwise just first Name): “);
scanf(“%s”, &name);
printf(“Enter Account Number(Enter >> 11223344): “);
scanf(“%llu”, &account);
printf(“Enter Your Password(Enter 1122): “);
scanf(“%d”, &password);
if(password==pass && account==acc)
{
printf(“\nPlease enter \n1 >> For create a New account\n2 >> For Deposit\n3 >> For Withdraw Balance\n4 >> For Payment\n”);
scanf(“%d”, &num);
switch(num)
{
case 1:
{
printf(“Please enter First Name(Or Use like (_) between the middle name:\n”);
scanf(“%s”, &name);
printf(“Please Enter your Phone number: “);
scanf(“%llu”, &phone);
printf(“Enter a strong Password: “);
int password_new;
scanf(“%d”, &password_new);
printf(“Congratulations..! Your account has been activated successfully.\n\nYour Name: %s.\nYour Phone Number: %llu.\nYour Password: %d”, name, phone, password_new);
break;
}
case 2:
{
printf(“<<<< Yeah, Maybe You want to deposit Money..>>>\n”);
printf(“—————————————————-\n\n”);
printf(“Please Enter Your Name: “);
scanf(“%s”, &name);
printf(“Please Enter your Account number(11223344): “);
scanf(“%llu”, &account);
printf(“Please Enter your Amount: “);
scanf(“%d”, &amount);
printf(“Please Enter your Password(1122): “);
scanf(“%d”, &password);
if(password==pass && account==acc)
{
//Confirmation SMS
printf(“\nGreat..! Your Balance %d is deposited to the account holder %s, Phone number %llu…\n\n”, amount, name, account);
printf(“\n”);
break;
}
else
{
printf(“Wrong Password. Please enter valid password: “);
scanf(“%d”, &password);
if(password==pass)
{
//Confirmation SMS
printf(“\nGreat..! Your Balance %d is deposited to the account holder %s, Phone number %llu…\n\n”, amount, name, phone);
printf(“\n”);
break;
}
else
{
printf(“Your Account suspended”);
}
}
}
case 3:
{
printf(“<<<< Yeah, Maybe You want to Withdraw Money..>>>\n”);
printf(“—————————————————-\n\n”);
printf(“Please Enter Your account Number: “);
scanf(“%llu”, &account);
printf(“Please Enter your Amount: “);
scanf(“%d”, &amount);
printf(“Please Enter your Password: “);
scanf(“%d”, &password);
//Condition for matching Password
if(password==pass)
{
//Confirmation SMS
printf(“\nPlease Take the money: \n”);
printf(“Dear valuable customer %d Taka has been withdraw from your acc: %llu\n”, amount, account);
printf(“\n”);
break;
}
else
{
printf(“Wrong Password. Please enter valid password: “);
scanf(“%d”, &password);
if(password==pass)
{
//Confirmation SMS
printf(“\nPlease Take the money: \n”);
printf(“Dear valuable customer %d Taka has been withdraw from your acc: %llu\n”, amount, account);
printf(“\n”);
break;
}
else
{
printf(“Your Account suspended”);
}
}
}
case 4:
{
printf(“<<<< Yeah, Maybe You want to Payment..>>>\n”);
printf(“—————————————————-\n\n”);
printf(“Please Enter Your account Number: “);
scanf(“%llu”, &account);
printf(“Please Enter your Amount: “);
scanf(“%d”, &amount);
printf(“Please Enter Reciver account Number: “);
scanf(“%llu”, &account_recv);
printf(“Please Enter your Password: “);
scanf(“%d”, &password);
int pass=1122;
if(password==pass && account==acc)
{
//Confirmation SMS
printf(“Dear valuable customer %d Taka has been sent to acc: %llu from your acc: %llu\n”, amount,account_recv, account);
printf(“\n”);
break;
}
else
{
printf(“Wrong Password, Please input again: “);
scanf(“%d”, &password);
if(password==pass)
{
//Confirmation SMS
printf(“Dear valuable customer %d Taka has been sent to acc: %llu from your acc: %llu\n”, amount,account_recv, account);
printf(“\n”);
break;
}
else
{
printf(“Account Suspend”);
}
}
}
default:
{
printf(“Wrong Input”);
}
}
}
else
{
printf(“\n\nAccount Number and Password Invalid\n\n”);
}
return 0;
}
