Check if a double is infinite in Java

Question

I'm making a simple calculator for this homework, and Java is returning "Infinity" when divided by 0.

I need to display some error message, when I get infinity. The problem is I don't know how to do the condition

double result; result = 4/0; //if result == infinity then some message - need help with this 

Answer 1

You can use Double.isInfinite(double)

Here's double doc

Answer 2

The above code produces

ArithmeticException: / by zero 

You can catch this exception in a try/catch block.