Java - Float Class isInfinite() Method

Float class isInfinite() method: Here, we are going to learn about the isInfinite() method of Float class with its syntax and example. By Preeti Jain Last updated : March 21, 2024

Syntax

public boolean isInfinite ();
public static boolean isInfinite (float value);

Float class isInfinite() method

isInfinite() method is available in java.lang package.
isInfinite() method is used to check the infinity of this Float object (i.e. either positive infinity or negative infinity).
isInfinite(float value) method is used to check the infinity of the given argument is of float type (i.e. either positive infinity or negative infinity).
These are non-static methods, they are accessible with the class object only and if we try to access the method with the class name then we will get an error.
These methods do not throw an exception at the time of checking infinity.

Parameters

In the First case – isInfinite(), we don't pass any parameter or value.
In the Second case – isInfinite(float value), we pass only one parameter or value is of float type.

Return Value

The return type of this method is boolean, it returns a boolean value either true or false depending on the condition.

In the first case, if the given value represented by the object is either positive infinity or negative infinity, it returns true.
In the second case, if the given value represented by the object is not either positive infinity or negative infinity, it returns false.

Example

// Java program to demonstrate the example 
// of isInfinite() method of Float class

public class IsInfiniteOfFloatClass {
    public static void main(String[] args) {
        // Object initialization
        Float ob1 = new Float(10.0 / 0.0);
        Float ob2 = new Float(-20.0 / 0.0);
        Float ob3 = new Float(20.0);

        // Display ob1,ob2 and ob3 values
        System.out.println("ob1: " + ob1);
        System.out.println("ob2: " + ob2);
        System.out.println("ob3: " + ob3);

        // It checks infinity by calling ob1.isInfinite() for ob1
        // and ob2.isInfinite() for ob2  

        boolean infinite1 = ob1.isInfinite();
        boolean infinite2 = ob2.isInfinite();

        // Display result values
        System.out.println("ob1.isInfinite(): " + infinite1);
        System.out.println("ob2.isInfinite(): " + infinite2);

        // It checks infinity by calling Float.isInfinite(ob3) for ob3
        boolean infinite3 = Float.isInfinite(ob3);

        // Display result values
        System.out.println("Float.isInfinite(ob3): " + infinite3);
    }
}

Output

ob1: Infinity
ob2: -Infinity
ob3: 20.0
ob1.isInfinite(): true
ob2.isInfinite(): true
Float.isInfinite(ob3): false

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