text: Generate all numbers up to N in Lexicographical Order | Java Program to implement the above approach ; Function to print all the numbers up to n in lexicographical order ; Driver Program
code: import java . util . * ; class GFG { static void lexNumbers ( int n ) { Vector < String > s = new Vector < String > ( ) ; for ( int i = 1 ; i <= n ; i ++ ) { s . add ( String . valueOf ( i ) ) ; } Collections . sort ( s ) ; Vector < Integer > ans = new Vector < Integer > ( ) ; for ( int i = 0 ; i < n ; i ++ ) ans . add ( Integer . valueOf ( s . get ( i ) ) ) ; for ( int i = 0 ; i < n ; i ++ ) System . out . print ( ans . get ( i ) + " ▁ " ) ; } public static void main ( String [ ] args ) { int n = 15 ; lexNumbers ( n ) ; } }