public static void main ( String [ ] args ) {
  int a = 1 ;
  int b = 2 ;
  int c = 3 ;
  int d = 4 ;
  System . out . println ( "values before " + "swapping are : " ) ;
  System . out . println ( "a = " + a ) ;
  System . out . println ( "b = " + b ) ;
  System . out . println ( "c = " + c ) ;
  System . out . println ( "d = " + d ) ;
  System . out . println ( "" ) ;
  swap ( a , b , c , d ) ;
}

public static void main ( String [ ] args ) { int a = 1 ; int b = 2 ; int c = 3 ; int d = 4 ; System . out . println ( " values ▁ before ▁ " + " swapping ▁ are ▁ : ▁ " ) ; System . out . println ( " a ▁ = ▁ " + a ) ; System . out . println ( " b ▁ = ▁ " + b ) ; System . out . println ( " c ▁ = ▁ " + c ) ; System . out . println ( " d ▁ = ▁ " + d ) ; System . out . println ( " " ) ; swap ( a , b , c , d ) ; }
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