text: Reverse words in a given string | Java code to reverse a string ; Reverse the string ; Check if number of words is even ; Find the middle word ; Starting from the middle start swapping words at jth position and l - 1 - j position ; Check if number of words is odd ; Find the middle word ; Starting from the middle start swapping the words at jth position and l - 1 - j position ; Return the reversed sentence ; Driver Code
code: class GFG { public static String [ ] RevString ( String [ ] s , int l ) { if ( l % 2 == 0 ) { int j = l / 2 ; while ( j <= l - 1 ) { String temp ; temp = s [ l - j - 1 ] ; s [ l - j - 1 ] = s [ j ] ; s [ j ] = temp ; j += 1 ; } } else { int j = ( l / 2 ) + 1 ; while ( j <= l - 1 ) { String temp ; temp = s [ l - j - 1 ] ; s [ l - j - 1 ] = s [ j ] ; s [ j ] = temp ; j += 1 ; } } return s ; } public static void main ( String [ ] args ) { String s = " getting ▁ good ▁ at ▁ coding ▁ " + " needs ▁ a ▁ lot ▁ of ▁ practice " ; String [ ] words = s . split ( " \\ s " ) ; words = RevString ( words , words . length ) ; s = String . join ( " ▁ " , words ) ; System . out . println ( s ) ; } }