Loan Eligibility Checker in C

Summary: This C program determines whether an applicant qualifies for a loan based on their age, income, credit score, and employment status. The program classifies applicants into different loan categories: Premium, Standard, Basic, or No Loan eligibility.

#include <stdio.h>

int main() {
    int age, income, credit_score;
    char employment_status;

    // Taking input from the user
    printf("Enter your age: ");
    scanf("%d", &age);

    printf("Enter your annual income: ");
    scanf("%d", &income);

    printf("Enter your credit score: ");
    scanf("%d", &credit_score);

    printf("Enter your employment status (Y for Employed, S for Self-Employed, N for Unemployed): ");
    scanf(" %c", &employment_status);

    // Checking eligibility for loans
    if (age >= 25 && age <= 60 && income >= 80000 && credit_score >= 750 && employment_status == 'Y') {
        printf("You are eligible for a Premium Loan.\n");
    } else if (age >= 21 && income >= 50000 && credit_score >= 650 && (employment_status == 'Y' || employment_status == 'S')) {
        printf("You are eligible for a Standard Loan.\n");
    } else if (age >= 18 && income >= 30000 && credit_score >= 600 && employment_status != 'N') {
        printf("You are eligible for a Basic Loan.\n");
    } else {
        printf("You are not eligible for any loan.\n");
    }
    
    return 0;
}

Explanation:

Understanding Variables:
The program uses different variable types to store user input:

• int age: Stores the user's age as an integer.
• int income: Stores the user's annual income as an integer.
• int credit_score: Stores the user's credit score as an integer.
• char employment_status: Stores the employment status as a single character.

Variables allow dynamic storage of user input, making the program interactive.

Taking User Input:
The program uses scanf() to read user input and store it in variables. The space before %c in the last scanf() avoids newline issues when reading a character input.

Conditional Statements:
The if-else statements check multiple conditions to determine loan eligibility. Logical operators used include:

• && (AND): Ensures all conditions in a statement must be true.
• || (OR): Allows flexibility in conditions.
• != (NOT EQUAL TO): Used to exclude certain values.

These conditions help structure decision-making in the program.

Comparison Operators:
The program utilizes comparison operators such as:

• >= (greater than or equal to)
• <= (less than or equal to)
• == (equal to)

These operators evaluate numeric conditions to classify eligibility.

Why Use Else If Statements?
The else if structure ensures that only one block executes, making it efficient by stopping further checks once a condition is met.

Program Output:
Based on input values, the program prints different messages using printf() to inform the user of their loan eligibility.