NaNTest

gistfile1.java

public class NaNTest {

	public static void main(String[] args) {
		double a = 10.0 / 0.0;
		double b = a * 3;
		System.out.println(a);
		System.out.println(b);
		
		checkValue(b);
	}
	
	public static void checkValue(double val) throws ArithmeticException {
	    if (Double.isInfinite(val) || Double.isNaN(val))
	        throw new ArithmeticException("illegal double value: " + val);
	}

}