Tag Archives: equals

Double.equals pitfalls

It turns out that Double.equals is not always the same as == with two double primitives. Case in point: double a = Double.NaN; System.out.println(a == a); Double b = new Double(a); System.out.println(b.equals(b)); This code will print out false and true. What’s going on? Basically, if you look at the Javadoc for the equals method, it […]