Java Program to Check Even or Odd Number
Learn to check if a number is even or odd in Java using modulus operator. Complete program with examples and explanations of different approaches.
import java.util.Scanner;
class CheckEvenOdd
{
public static void main(String args[])
{
int num;
System.out.println("Enter an Integer number:");
//The input provided by user is stored in num
Scanner input = new Scanner(System.in);
num = input.nextInt();
/* If number is divisible by 2 then it's an even number
* else odd number*/
if ( num % 2 == 0 )
System.out.println("Entered number is even");
else
System.out.println("Entered number is odd");
}
}Output 1:
Enter an Integer number:
78
Entered number is evenOutput 2:
Enter an Integer number:
77
Entered number is oddJava Program to Find GCD and LCM
Learn to calculate Greatest Common Divisor (GCD) and Least Common Multiple (LCM) using various algorithms including Euclidean method, recursion, and array operations.
Java Program to Check Prime Number
Learn how to check whether a number is prime in Java using simple loop-based methods and an optimized square-root approach.