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Convert hexadecimal number to decimal number example

  1. /*
  2.         Convert hexadecimal number to decimal number example.
  3.         This example shows how to convert hexadecimal number
  4.         to decimal number using valueOf method of Integer
  5.         wrapper class.
  6. */
  7.  
  8. public class ConvertHexToDecimalExample {
  9.  
  10.         public static void main(String[] args) {
  11.                
  12.                 //declare string containing hexadecimal number
  13.                 String strHexNumber = "20";
  14.                
  15.                 /*
  16.                  * to convert hexadecimal number to decimal number use,
  17.                  * int parseInt method of Integer wrapper class.
  18.                  *
  19.                  * Pass 16 as redix second argument.
  20.                  */
  21.                  
  22.                  int decimalNumber = Integer.parseInt(strHexNumber, 16);
  23.                  System.out.println("Hexadecimal number converted to decimal number");
  24.                  System.out.println("Decimal number is : " + decimalNumber);
  25.                
  26.         }
  27. }
  28.  
  29. /*
  30. Output would be
  31. Hexadecimal number converted to decimal number
  32. Decimal number is : 32
  33. */

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