boolean isDigit() inside if statement

[Googol]

Im including the entire method as I'm sure improvements can be made, but my problem is with an if statement containing the boolean isDigit(). Even when the boolean evaluates to false the statements following are run. The method runs through an array and appends all of the numerical values to a StringBuilder.

   public static String extractNumbers(String line)
   {
      StringBuilder str = new StringBuilder();
      for (char i: line.toCharArray())
      {      
        if (Character.isDigit(i));  //also tried (Character.isDigit(i) == true)
        {
          str.append(i);
          System.out.println(Character.isDigit(i));
        }
      }
      return str.toString();
    }

[awinston]

You have a semicolon directly after your if-statement. If you delete it, then the condition will be applied to the statements inside the braces.

Im including the entire method as I'm sure improvements can be made, but my problem is with an if statement containing the boolean isDigit(). Even when the boolean evaluates to false the statements following are run. The method runs through an array and appends all of the numerical values to a StringBuilder.

   public static String extractNumbers(String line)
   {
      StringBuilder str = new StringBuilder();
      for (char i: line.toCharArray())
      {      
        if (Character.isDigit(i));  <-------  Delete this semicolon
        {
          str.append(i);
          System.out.println(Character.isDigit(i));
        }
      }
      return str.toString();
    }

[Googol]

wow, thank you