Java program to display even and odd number in the given range

In this tutorial, we discuss a concept of Java program to display even and odd number in the given range

What is odd or even?

When you divide a number by two and if the balance is zero, it is an even number

when the number divided by two and if the balance is one, it is an odd number

Cpp program to display even and odd number in the given range — Display an even and odd number in the given range

Example of even number 2,4,6,8,…..

Example of odd number 1,3,5,7,…..

Here we will use a modular operator to display odd or even number in the given range.

if n%2==0, n is a even number

if n%2==1, n is a odd number

Program 1

This program allows the user to enter two different digits and then, the program will display odd numbers and even numbers between entered digits using for loop

import java.util.Scanner;
class OddEvenRange{
public static void main (String args[]){
int r,i;
Scanner scan=new Scanner(System.in);
//create a scanner object for input

System.out.print("Enter the first number for the range: ");
int num1=scan.nextInt();//reads num1 from user
System.out.print("Enter the second number for the range: ");
int num2=scan.nextInt();//reads num2 from user

System.out.print("\nDisplay the even numbers between "+num1+" and "+num2+" are :");

for(i=num1; i<=num2; i++){ 
r=i%2; 
if(r==0) 
System.out.println(i);
}

System.out.print("\nDisplay the odd numbers between "+num1+" and "+num2+" are :");

for(i=num1; i<=num2; i++){ 
r=i%2; 
if(r==1) 
System.out.println(i);
}
}
}

When the above code is executed, it produces the following results

Enter the first number for the range: 25
Enter the second number for the range: 40

Display the even numbers between 25 and 40 are:
26
28
30
32
34
36
38
40

Display the odd numbers between 25 and 40 are:
27
29
31
33
35
37
39

Program 2

This program allows the user to enter two different digits and then, the program will display odd numbers and even numbers between entered digits using while loop

import java.util.Scanner;
class OddEvenRange1{
public static void main (String args[]){
int r,i;
Scanner scan=new Scanner(System.in);
//create a scanner object for input

System.out.print("Enter the first number for the range: ");
int num1=scan.nextInt();//reads num1 from user
System.out.print("Enter the second number for the range: ");
int num2=scan.nextInt();//reads num2 from user

System.out.print("\nDisplay the even numbers between "+num1+" and "+num2+" are :");

i=num1; 
while(i<=num2){ 
r=i%2; 
if(r==0) 
System.out.println(i);
 i++;
}

System.out.print("\nDisplay the odd numbers between "+num1+" and "+num2+" are :");

i=num1; 
while(i<=num2){ 
r=i%2; 
if(r==1) 
System.out.println(i);
 i++;
}
}
}

When the above code is executed, it produces the following results

Enter the first number for the range: 32
Enter the second number for the range: 44

Display the even numbers between 32 and 44 are:
34
36
38
40
42
44

Display the odd numbers between 32 and 44 are:
35
37
39
41
43

Program 3

This program allows the user to enter two different digits and then, the program will display odd numbers and even numbers between entered digits using a do-while loop

import java.util.Scanner;
class OddEvenRange2{
public static void main (String args[]){
int r,i;
Scanner scan=new Scanner(System.in);
//create a scanner object for input

System.out.print("Enter the first number for the range: ");
int num1=scan.nextInt();//reads num1 from user
System.out.print("Enter the second number for the range: ");
int num2=scan.nextInt();//reads num2 from user

System.out.print("\nDisplay the even numbers between "+num1+" and "+num2+" are :\n");

i=num1; 
do{ 
r=i%2; 
if(r==0) 
System.out.println(i);
 i++;
}while(i<=num2);

System.out.print("\nDisplay the odd numbers between "+num1+" and "+num2+" are :\n");

i=num1; 
do{ 
r=i%2; 
if(r==1) 
System.out.println(i);
 i++;
}while(i<=num2);
}
}

When the above code is executed, it produces the following results

Enter the first number for the range: 21
Enter the second number for the range: 35

Display even number between 21 and 35 are:
22
24
26
28
30
32
34

Display an odd number between 21 and 35 are:
21
23
25
27
29
31
33
35

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