In previous post we learnt what is java programming or introduction of java programming, In this article you will learn basic of java programming with lot of java programming exercises, examples and their solutions.
In this article I will share some most commonly asked interview questions for you.
There are lot of computer science students, engineering students and programmers applying for interview to get job and start their career in software industries.
There are many big companies like Microsoft, Google, Amazon, Facebook and many other big organizations hires new software developers and programmers every year.
EX: Write a C program to display user details using id. How to write a C program to display user details. C program to display student details using their ID.
In this article, we will learn how to write a C program that displays user details based on a provided ID. In this program, we will use a switch case to print user details... But you can also do this program using if-else-if statements.
Step 1: Include the Standard Input-Output Header
First, include the standard input-output library, which allows us to use functions like printf and scanf for input and output operations.
#include<stdio.h>Step 2: Start the main Function
Every C program starts executing from the main function. This is where we'll write the logic of our program.
int main() {
Step 3: Declare an Integer Variable
We'll declare an integer variable id to store the ID entered by the user.
int id;Prompt the user to enter their ID using printf and store the input in the id variable using scanf.
// Accept id from user
printf("Enter your id: ");
scanf("%d", &id);Step 5: Use a switch Statement to Match the ID
The switch statement allows us to execute different code blocks based on the value of the id. We'll check for specific IDs and print the corresponding user details.
//Switch the value of id
switch(id) {
Step 6: Define Cases for Specific IDs
For each case, we'll match a specific ID and print the details for that user. If the ID doesn't match any case, the default case will prompt the user to enter a valid ID.
// Match id with cases
case 11:
printf("Information of id %d is:\n", id);
printf("Name: Omkar Lokhande\nContact: 123456***\nAdd: Kalamb\n");
break;
case 12:
printf("Information of id %d is:\n", id);
printf("Name: Akash Sutar\nContact: 1234***\nAdd: Kalamb\n");
break;
case 13:
printf("Information of id %d is:\n", id);
printf("Name: Rusty Shackleford\nContact: 12456***\nAdd: California\n");
break;
default:
printf("Please Enter Valid Id\n");
}
Step 7: End the main Function
Finally, we'll return 0 to indicate that the program has executed successfully.
return 0;
}
#include<stdio.h>
int main()
{
int id;
//Accept id from user
printf("Enter your id: ");
scanf("%d",&id);
//Switch the value of id
switch(id) {
//Match id with cases
case 11:
printf("Information of id %d is:\n",id);
printf("Name: Omkar Lokhande\nContact: 123456***\nAdd: kalamb");
break;
case 12:
printf("Information of id %d is:\n",id);
printf("Name: Akash Sutar\nContact: 1234***\nAdd: kalamb");
break;
case 13:
printf("Information of id %d is:\n",id);
printf("Name: Rusty Shackleford \nContact: 12456***\nAdd: California");
break;
default:
printf("Please Enter Valid Id");
}
return 0;
}
In this program we will use Nested switch statement in C. In simple words Nested switch statement means switch statement defined inside the another switch statement.
In this program we will learn How to append data into a file.
EX: Write a C program to append data into a file, How to write a C program to append contents into a file. C program to append data into a file.
In these tutorial we will learn how to input data from user and store it into the file...
EX: Write a program in C to create and store information in a text file, How to write C program to get data from user and print it on the output screen, C program to write data into a file.
In this exercise we will learn how to read data from file using fgets() function...
EX: Write a C program to read data from file using fgets(), C program to read data from file, How to read content from the file in C.
In previous program we learnt how to read data from file using fgetc(). In this program we will use fgets() to read content from the file.