output occurs but invisible immediately how to rectify this

Question

public class evenodd {

public static void main(String[] args) {

{

int n = 10;

System.out.print("Even Numbers from 1 to "+n+" are: ");

for (int i = 1; i <= n; i++) {

   //if number%2 == 0 it means its an even number

   if (i % 2 == 0) {

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

   }

}

}

   int o = 10;

System.out.print("Odd Numbers from 1 to "+o+" are: ");

for (int a = 1; a <= o; a++) {

   if (a % 2 != 0) {

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

             }

       }

    }

}

Comments

I tried the code. Works fine.