Java code to check whether a number is even or odd
In this tutorial, we will discuss a simple concept of Java code to check whether a number is even or odd
In this post, we are going to learn about how to find odd or even number from given number using if else statements in Java programming language
What is even or odd
When the number is exactly divisible by 2, it is called as the even number
if the number is not exactly divisible by 2, it is called as the odd number
Program 1
Once This program received the number it will check the given number either odd or even.
After the program received input from the user, it is stored in the variable of num. then program divides the value of num into 2 and displays the output
Using modular operator
import java.util.Scanner;
class EvenOdd1{
public static void main (String args[]){
Scanner scan=new Scanner(System.in);//Scanner class
System.out.print("Enter a number: ");
int num=scan.nextInt();//get input from user
if(num%2==0)
System.out.print(num+" is a even number");
else
System.out.print(num+" is a odd number");
}
}
When the above code is executed, it produces the following results
case 1
Enter an integer value: 44 44 is a even number
case 2
Enter an integer value: 65 65 is a odd number
when we use the modular operator, if it is the remainder appears as 0, it is called even number and if the remainder displays the balance as one, it is called as odd or uneven number
Program 2
Using ternary operator
import java.util.Scanner;
class EvenOdd2{
public static void main (String args[]){
Scanner scan=new Scanner(System.in);//Scanner class
System.out.print("Enter a number: ");
int num=scan.nextInt();//get input from user
String evenOdd=(num%2==0) ? " is even":" is odd";
System.out.println(num+evenOdd+" number");
}
}
When the above code is executed, it produces the following results
case 1
Enter an integer value: 49 49 is a odd number
case 2
Enter an integer value: 100 100 is a even number
Program 3
Using Bitwise operators
import java.util.Scanner;
class OddEvenBitwise{
public static void main (String args[]){
Scanner scan=new Scanner(System.in);
System.out.print("Enter the number: ");
int num=scan.nextInt();
if((num & 1) ==1)
System.out.print(num+ "is a odd number");
else
System.out.print(num+ "is a even number");
}
}
When the above code is executed, it produces the following results
case 1
Enter an integer value: 75 75 is a odd number
case 2
Enter an integer value: 32 32 is a even number
Program 4
Using Divisional operators
import java.util.Scanner;
class OddEvenJava3{
public static void main (String args[]){
Scanner scan=new Scanner(System.in);
System.out.print("Enter the number: ");
int num=scan.nextInt();
if((num/2)*2==num)
System.out.println(num+" is even");
else
System.out.println(num+" is odd");
}
}
When the above code is executed, it produces the following results
case 1
Enter an integer value: 77 77 is odd
case 2
Enter an integer value: 40 40 is even
Program 5
Using shift operators
import java.util.Scanner;
class OddEvenShift{
public static void main (String args[]){
Scanner scan=new Scanner(System.in);
System.out.print("Enter the number for check odd or even: ");
int num=scan.nextInt();
if(((num >> 1)<<1) ==num)
System.out.print(num+ " is a Even number");
else
System.out.print(num+ " is a Odd number");
}
}
When the above code is executed, it produces the following results
case 1
Enter an integer value: 345 345 is a Odd number
case 2
Enter an integer value: 450 450 is a Even number
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