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Float isInfinite() method in Java with examples
  • Last Updated : 26 Oct, 2018
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The isInfinite() method in Float Class is a built in method in Java returns true if this Float value or the specifies float value is infinitely large in magnitude, false otherwise.

Syntax:

public boolean isInfinite()
        or
public static boolean isInfinite(float val)

Parameters: The function accepts a single parameter val which specifies the value to be checked when called directly with the Float class as static method. The parameter is not required when the method is used as instance method.

Return Value: It return true if the val is infinit else it return false.

Below programs illustrate isInfinite() method in Java:



Program 1: Using static isFinity() method




// Java code to demonstrate
// Float isInfinite() method
// without parameter
  
class GFG {
    public static void main(String[] args)
    {
  
        // first example
        Float f1 = new Float(1.0 / 0.0);
  
        boolean res = f1.isInfinite();
  
        // printing the output
        if (res)
            System.out.println(f1
                               + " is infinity");
        else
            System.out.println(f1
                               + " is not infinity");
  
        // second example
        f1 = new Float(0.0 / 0.0);
  
        res = f1.isInfinite();
  
        // printing the output
        if (res)
            System.out.println(f1
                               + " is infinity");
        else
            System.out.println(f1
                               + " is not infinity");
    }
}
Output:
Infinity is infinity
NaN is not infinity

Program 2: Using non-static isFinity() method




// Java code to demonstrate
// Float isInfinite() method
// with parameter
  
class GFG {
    public static void main(String[] args)
    {
  
        // first example
        Float f1 = new Float(1.0 / 0.0);
  
        boolean res = f1.isInfinite(f1);
  
        // printing the output
        if (res)
            System.out.println(f1
                               + " is infinity");
        else
            System.out.println(f1
                               + " is not infinity");
  
        // second example
        f1 = new Float(0.0 / 0.0);
  
        res = f1.isInfinite(f1);
  
        // printing the output
        if (res)
            System.out.println(f1
                               + " is infinity");
        else
            System.out.println(f1
                               + " is not infinity");
    }
}
Output:
Infinity is infinity
NaN is not infinity

Reference: https://docs.oracle.com/javase/7/docs/api/java/lang/Float.html#isInfinite()

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