Check if a double is infinite in Java

"java.lang.Double" class provides "isInfinite()" method to check whether given double value is infinitely large in magnitude.

"isInifinte()" method is available in two forms.

public boolean isInfinite()

public static boolean isInfinite​(double v)

Both the methods return true if the specified number is infinitely large in magnitude, false otherwise.

Test.java

package com.sample.test;

public class Test {

 private static double factorial(int num) {
  double result = 1;

  for (int i = 2; i <= num; i++) {
   result = result * i;
   if (Double.isInfinite(result)) {
    throw new ArithmeticException("Overflow");
   }
  }
  
  return result;
 }

 public static void main(String... args) {
  System.out.println(factorial(1000));
 }
}

When you ran above application, you will end up in ArithmeticException.

Exception in thread "main" java.lang.ArithmeticException: Overflow

         at com.sample.app.Test.factorial(Test.java:11)

         at com.sample.app.Test.main(Test.java:19)

You may like

Miscellaneous

Interview Questions

Programming Questions

Get all the month names in Java

Get week names in Java

Get all the currencies supported in Java

Get country and the currency of the country

jsizer: Visualize the complexity of java project

How to limit number of requests?

How to view packages as folder structure in eclipse?

Comment multiple lines inEclipse