Print all odd numbers between 1 to 100 in java [2 ways] - CY

Display all odd numbers between 1 to 100 in java

Do you what to print all odd numbers between 1 and 100 ? Here you can learn 2 different approaches to write this program and proper explanation.

Approach:-1 " display odd numbers from 1 to 100 in java using for loop"

 
public class usingForLoop 

{

    public static void main(String[] args)

    {

     System.out.println("Odd numbers from 1 - 100 using for loop");

     

      for(int i = 0; i <= 100; i++)

      {

        if(i % 2 != 0)

        {

          System.out.print(i + " ");

        }

      }

      

    }

}

+

Explanation

You can see first I have filtered all the numbers from 1 to 100 using for loop.

Now using If statement I have checked, which numbers are not divisible by 0. I mean check for even or odd. 

Now simply I have printed the number which will satisfy the if condition i.e for odd number condition.

Output

Approach:-2 "print all odd numbers between 1 and 100 using while loop"

 public class usingWhileLoop 

{

    public static void main(String[] args)

    {

    System.out.println("Using while loop");

      int num = 1;

      

      while(num <= 100)

      {

        System.out.print(num +" ");

        num = num + 2;

      }

    }

} 

 

+

Explanation

In while loop I haven't use if statement to check the condition, here an another logic is applied. 

See if we add 2 to a odd number, then the result number will also be an odd number. 

• Ex :- 3 is odd, now 3+2 = 5 , here 5 is also odd number. 

I have use this concept to print all the odd numbers from 1 to 100.

Output

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And if you have any questions or any doubt, feel free to ask me in the comment section. I will definitely answer your questions.