HTML
<!DOCTYPE html>
<html>
<head>
<title>Leap Year Checker</title>
<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
<h1>Leap Year Checker</h1>
<form>
<label for="year">Enter a year:</label>
<input type="number" id="year" placeholder="e.g., 2023">
<button type="button" onclick="checkLeapYear()">Check</button>
</form>
<p id="result"></p>
<script src="script.js"></script>
</body>
</html>
CSS
body {
font-family: Arial, sans-serif;
text-align: center;
}
h1 {
color: #333;
}
form {
margin-top: 20px;
}
label {
font-weight: bold;
}
input[type="number"] {
padding: 5px;
}
button {
padding: 5px 10px;
background-color: #007bff;
color: #fff;
border: none;
cursor: pointer;
}
button:hover {
background-color: #0056b3;
}
#result {
font-weight: bold;
margin-top: 10px;
}
JAVA
import java.util.Scanner;
public class LeapYearChecker {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.print("Enter a year: ");
int year = scanner.nextInt();
if ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0) {
System.out.println(year + " is a leap year.");
} else {
System.out.println(year + " is not a leap year.");
}
scanner.close();
}
}
PYTHON
year = int(input("Enter a year: "))
if (year % 4 == 0 and year % 100 != 0) or year % 400 == 0:
print(f"{year} is a leap year.")
else:
print(f"{year} is not a leap year.")
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