public static void main ( String args [ ] ) {
  int a = 5 , b = 15 ;
  double HM = compute ( a , b ) ;
  String str = "" ;
  str = str + HM ;
  System . out . print ( "Harmonic Mean between " + a + " and " + b + " is " + str . substring ( 0 , 5 ) ) ;
}

public static void main ( String args [ ] ) { int a = 5 , b = 15 ; double HM = compute ( a , b ) ; String str = " " ; str = str + HM ; System . out . print ( " Harmonic ▁ Mean ▁ between ▁ " + a + " ▁ and ▁ " + b + " ▁ is ▁ " + str . substring ( 0 , 5 ) ) ; }
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