# Java program to print odd and even numbers between 1 and 100

Let’s learn java program to print odd and even numbers between 1 and 100.

## Java program to print odd and even numbers between 1 and 100

In the below program to print odd and even numbers between 1 and 100 we are using two for loops. One to print even numbers and another to print odd numbers.

```public class EvenOddBetween1And100
{
public static void main(String[] args)
{
System.out.println("Even numbers between 1 and 100: ");
for(int a = 1; a <= 100; a++)
{
if(a % 2 == 0)
{
System.out.print(a + " ");
}
}
System.out.println("\nOdd numbers between 1 and 100: ");
for(int a = 1; a <= 100; a++)
{
if(a % 2 != 0)
{
System.out.print(a + " ");
}
}
}
}
```

Output:

Even numbers between 1 and 100:
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88 90 92 94 96 98 100
Odd numbers between 1 and 100:
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87 89 91 93 95 97 99

Using nested-if statement

In the below java program we have defined a method that hold logic to check odd or even number which uses nested-if statement.

```public class OddEvenUsingNestedIf
{
public static void main(String[] args)
{
System.out.println("Odd numbers: ");
printOddNumbers(1, 100);
System.out.println("\n");
System.out.println("Even numbers: ");
printEvenNumbers(1, 100);
}
private static void printOddNumbers(int odd, int end)
{
if(odd > end)
return;
if(odd % 2 != 0)
{
System.out.print(odd + " ");
printOddNumbers(odd + 2, end);
}
else
{
printOddNumbers(odd + 1, end);
}
}
private static void printEvenNumbers(int even, int end)
{
if(even > end)
return;
if(even % 2 == 0)
{
System.out.print(even + " ");
printEvenNumbers(even + 2, end);
}
else
{
printEvenNumbers(even + 1, end);
}
}
}
```

Output:

Odd numbers:
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87 89 91 93 95 97 99

Even numbers:
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88 90 92 94 96 98 100

### Using while loop

Similarly let’s learn to print odd numbers between 1 and 100 using while loop.

```import java.util.Scanner;
public class OddEvenUsingWhileLoop
{
public static void main(String[] args)
{
int oddNumber, a;
Scanner sc = new Scanner(System.in);
System.out.print("Please enter limit to print odd numbers: ");
oddNumber = sc.nextInt();
a = 1;
System.out.print("Odd numbers: ");
while(a <= oddNumber)
{
System.out.print(a + " ");
a = a + 2;
}
sc.close();
}
}
```

Output:

Please enter limit to print odd numbers: 100
Odd numbers: 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87 89 91 93 95 97 99

Now let’s see to print even numbers between 1 and 100 using while loop.

```import java.util.Scanner;
public class OddEvenUsingWhileLoop
{
public static void main(String[] args)
{
int evenNumber, a;
Scanner sc = new Scanner(System.in);
System.out.print("Please enter limit to print even numbers: ");
evenNumber = sc.nextInt();
a = 2;
System.out.print("Even numbers: ");
while(a <= evenNumber)
{
System.out.print(a + " ");
a = a + 2;
}
sc.close();
}
}
```

Output:

Please enter limit to print even numbers: 100
Even numbers: 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88 90 92 94 96 98 100