NaN values are non-ordinal for comparisons. : float « Java Source And Data Type « SCJP

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SCJP » Java Source And Data Type » float

1.11.7.NaN values are non-ordinal for comparisons.

public class MainClass {

  public static void main(String[] argv) {

    float x = 1.123F;



    System.out.println(x < Float.NaN);

    System.out.println(x <= Float.NaN);

    System.out.println(x == Float.NaN);

    System.out.println(x > Float.NaN);

    System.out.println(x >= Float.NaN);



    System.out.println(Float.NaN == Float.NaN);

    System.out.println(Float.NaN != Float.NaN);



  }

}

1.11.float
	1.11.1.	The two floating-point types are float and double
	1.11.2.	A floating-point literal with a decimal point
	1.11.3.	A floating-point literal with letter E or e (scientific notation)
	1.11.4.	A floating-point literal with suffix F or f, indicating a float literal
	1.11.5.	Special floating-point values.
	1.11.6.	Two NaN values are defined in the java.lang package (Float.NaN and Double.NaN)
	1.11.7.	NaN values are non-ordinal for comparisons.
	1.11.8.	Use Float.isNaN(float) or Double.isNaN(double) to check NaN value

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