k | Java program to find k - th element in the Odd - Even sequence . ; insert all the odd numbers from 1 to n . ; insert all the even numbers from 1 to n . ; Driver code
import java . util . * ; class GFG { static int findK ( int n , int k ) { ArrayList < Integer > a = new ArrayList < Integer > ( n ) ; for ( int i = 1 ; i < n ; i ++ ) if ( i % 2 == 1 ) a . add ( i ) ; for ( int i = 1 ; i < n ; i ++ ) if ( i % 2 == 0 ) a . add ( i ) ; return ( a . get ( k - 1 ) ) ; } public static void main ( String [ ] args ) { int n = 10 , k = 3 ; System . out . println ( findK ( n , k ) ) ; } }