- Java Basic Programs
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- Java Print Hello World
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- Java Print Integer
- Java Add two Numbers
- Java Check Even or Odd
- Java Check Prime or Not
- Java Check Alphabet or Not
- Java Check Vowel or Not
- Check Reverse equal Original
- Java Fahrenheit to Celsius
- Java Celsius to Fahrenheit
- Java Perfect Number Program
- Java Find Quotient Remainder
- Java Days to Seconds
- Java Count Digits in Number
- Java Binary Number Addition
- Java Discount Program
- Java Compute Courier Charge
- Java Find Telephone Bill
- Java Print ASCII Values
- Java Check Palindrome or Not
- Java Check Armstrong or Not
- Generate Armstrong Numbers
- Add two Numbers using Pointers
- Java Mathematical Programs
- Add Subtract Multiply & Divide
- Java Make Calculator
- Java Add Digits of Number
- Java Check Leap Year or Not
- Java Check Divisibility
- Java Find Simple Interest
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- Java Print Fibonacci Series
- Java Find nCr nPr
- Calculate Average & Percentage
- Java Calculate Arithmetic Mean
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- Java Add n Numbers
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- Count Positive Negative & Zero
- Find Largest of two Numbers
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- Java Find Factorial of Number
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- Area & Perimeter of Square
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- Java Conversion Programs
- Java Decimal to Binary
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- Java Pattern Programs
- Java Pattern of Stars
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- Java Print Diamond Pattern
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- Java Array Programs
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- Java Bubble Sort
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- Java Find Common Elements
- Java Count Even/Odd Number
- Two Dimensional Array Program
- Java Add two Matrices
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- Java Transpose Matrix
- Multiply two Matrices
- Three Dimension Array Program
- Java String Programs
- Java Print String
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- Java Compare two String
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- Delete Vowels from String
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- Occurrence of Each Character
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- Java Count Repeated Characters
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- Java Capitalize Each Word
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- List files in Directory
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- Generate Random Numbers
- Java Print Time & Date
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- Java Programming Tutorial
- Java Tutorial
Java Program to Check Leap Year or Not
This article covers multiple programs in Java that checks whether an year entered by user at run-time of the program, is a leap year or not.
A leap year is an year that
- is divisible by 4, but not by 100
- or is divisible by 400
To understand the logic behind above conditions, refer to Leap Year Logic. Now let's move on, and create the program.
Leap Year Program in Java
The question is, write a Java program that checks whether an year is a leap year or not. The year must be received by user at run-time. The program given below is its answer:
import java.util.Scanner; public class CodesCracker { public static void main(String[] args) { int year; Scanner scan = new Scanner(System.in); System.out.print("Enter the Year: "); year = scan.nextInt(); if(year%4==0 && year%100!=0) System.out.println("\nIt is a Leap Year."); else if(year%400==0) System.out.println("\nIt is a Leap Year."); else System.out.println("\nIt is not a Leap Year."); } }
The snapshot given below shows the sample run of above program with user input 1900 as year to check whether it is a leap year or not:
Here is another sample run with user input 2024 as year:
Check Leap Year using Conditional Operator in Java
This program does the same job as of previous program. This program uses conditional or ternary (?:) operator to do the job.
import java.util.Scanner; public class CodesCracker { public static void main(String[] args) { Scanner scan = new Scanner(System.in); System.out.print("Enter the Year: "); int year = scan.nextInt(); int check = ((year%4==0 && year%100!=0) || (year%400==0)) ? 4 : 0; if(check==4) System.out.println("\n" +year+ " is a Leap Year."); else System.out.println("\n" +year+ " is not a Leap Year."); } }
Here is its sample run with user input 2000:
The above program can also be created in this way:
import java.util.Scanner; public class CodesCracker { public static void main(String[] args) { Scanner scan = new Scanner(System.in); System.out.print("Enter the Year: "); int year = scan.nextInt(); String check = ((year%4==0 && year%100!=0) || (year%400==0)) ? "yes" : "no"; if(check.equals("yes")) System.out.println("\n" +year+ " is a Leap Year."); else System.out.println("\n" +year+ " is not a Leap Year."); } }
You'll get the same output as of previous program.
Same Program in Other Languages
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