The %g format specifier causes Formatter to use either %f or %e, whichever is shorter : Formatter Specifiers « Development « Java Tutorial

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Java Tutorial » Development » Formatter Specifiers

6. 5. 3. The %g format specifier causes Formatter to use either %f or %e, whichever is shorter


import java.util.Formatter;



public class MainClass {

  public static void main(String args[]) {

    Formatter fmt = new Formatter();



    for (double i = 1000; i < 1.0e+10; i *= 100) {

      fmt.format("%g ", i);

      System.out.println(fmt);

    }

  }

}

1000.00 
1000.00 100000 
1000.00 100000 1.00000e+07 
1000.00 100000 1.00000e+07 1.00000e+09

6. 5. Formatter Specifiers
	6. 5. 1.	Formatting Output with Formatter
	6. 5. 2.	The Format Specifiers
	6. 5. 3.	The %g format specifier causes Formatter to use either %f or %e, whichever is shorter
	6. 5. 4.	Hex: %x, Octal: %o: Integer hexadecimal, Octal integer
	6. 5. 5.	%h: Hash code of the argument
	6. 5. 6.	%a: Floating-point hexadecimal
	6. 5. 7.	Unknown Format Conversion Exception
	6. 5. 8.	Formatter with different data types
	6. 5. 9.	using the %t specifier with Formatter.
	6. 5. 10.	Use Formatter to vertically align numeric values.
	6. 5. 11.	Use Formatter to left-justify strings within a table.
	6. 5. 12.	Using group separators.
	6. 5. 13.	The # symbol shows a digit or nothing if no digit present

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