Infinite and Not A Number

Using the following methods you can find out if a float value is infinite value or it is not a number(NaN).

Return	Method	Summary
boolean	isInfinite()	Returns true if this Float value is infinitely large in magnitude, false otherwise.
static boolean	isInfinite(float v)	Returns true if the specified number is infinitely large in magnitude, false otherwise.
boolean	isNaN()	Returns true if this Float value is a Not-a-Number (NaN), false otherwise.
static boolean	isNaN(float v)	Returns true if the specified number is a Not-a-Number (NaN) value, false otherwise.


public class Main {
  public static void main(String[] args) {
    Float floatObject2 = Float.valueOf((float)0.0/(float)(0.0));
    System.out.println(floatObject2);
    System.out.println("isInfinite:"+floatObject2.isInfinite());
    System.out.println("isNaN:"+floatObject2.isNaN());
    
  }
}

The output:


NaN
isInfinite:false
isNaN:true


public class Main {
  public static void main(String[] args) {
    Float floatObject2 = Float.valueOf(1/(float)(0.0));
    System.out.println(floatObject2);
    System.out.println("isInfinite:"+floatObject2.isInfinite());
    System.out.println("isNaN:"+floatObject2.isNaN());
    
  }
}

The output:


Infinity
isInfinite:true
isNaN:false

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