Java Program to Check Even or Odd Number using If-Else Statement | Ternary Operator | Function

Java program to check even or odd number using if-else statement, ternary operator & function.

In this article, you will learn how to make a java program to check even or odd number using an if-else statement, ternary operator & function.

 

Example

 

What are even odd numbers?

There is if any integer number divided by 2 and its reminder equals zero then it is an even number and if the remainder is greater than zero then it is an odd number.

 

Samples of Even-Odd Numbers

 

You should have knowledge of the following topics in java programming to understand these programs:

• Java java.util.Scanner package
• Java main() method
• Java If-else statement
• Java Ternary operator
• Java Functions
• Java Switch Case

 

In this article, we solve this problem in four methods:

1. Using the If-else statement
2. Using the Ternary operator
3. Using the Functions
4. Using the Switch Case

Source Code

// Java Program to Check Even or Odd Number using If-else Statement
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
    	Scanner in = new Scanner(System.in);

        int x;
        System.out.println ("Enter an integer number to check:\n");

        x = in.nextInt();

        if (x % 2 == 0) {
            System.out.println ("The input number is even.\n");
        } else {
            System.out.println ("The input number is odd.\n");
        }
    }
}

Run Program

Output

 

Explanation

In this given program, we have taken input 44 from the user via system input then we divided this input number by 2 with its remainder.

If the remainder is zero It's an even number otherwise It's an odd number.

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Java Program to Check Even or Odd Number using Conditional Operator

// Java Program to Check Even or Odd Number using Conditional Operator
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
    	Scanner in = new Scanner(System.in);

        int x;
        System.out.println ("Enter an integer number to check:\n");

        x = in.nextInt();
        x = x % 2 == 0 ? 1 : 0;

        if (x == 1) {
            System.out.println ("The input number is even.\n");
        } else {
            System.out.println ("The input number is odd.\n");
        }
    }
}

Run Program

Output

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Java Program to Check Whether a Number is Even or Odd using Function

// Java Program to Check Whether a Number is Even or Odd using Function
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);

        int x;
        System.out.println ("Enter an integer number to check:\n");

        x = in.nextInt();
        IsEvenNumber(x);
    }

    public static void IsEvenNumber(int x) {
        if (x % 2 == 0) {
            System.out.println ("The input number is even.");
        } else {
            System.out.println ("The input number is odd.");
        }
    }
}

Run Program

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Java Program to Check Even or Odd using Switch Case

// Java Program to Check Even or Odd using Switch Case
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);

        int x;
        System.out.println ("Enter an integer number to check:");

        x = in.nextInt();
        x = x % 2 == 0 ? 1 : 0;

        switch(x) {
        // If value of "x" is 1 the input number is "Even"
        case 1:
            System.out.println ("\nThe input number is even.");
            break;

        // If value of "x" is 0 the input number is "Even"
        case 0:
            System.out.println ("\nThe input number is odd.");
            break;

        default:
            System.out.println ("\nInvalid case given!");
            break;
        }
    }
}

Run Program

Output

 

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