Exception Handling

[eLancaster]

This is probably a dumb question but,
why does

int numerator = read.nextInt();//input = 20
int denominator = read.nextInt();//input = 4
int fraction = numerator/denominator;
System.out.printf("Fraction: %d",fraction);

not give an exception, but the following code does:

int numerator = read.nextInt();//input = 20
int denominator = read.nextInt();//input = 4
double fraction = (double) numerator/denominator;
System.out.printf("Fraction: %d",fraction);

[JosAH]

This is probably a dumb question but,
why does [ ... ] not give an exception, but the following code does: [ ... ]

It would've been nice if you'd told us what Exception was thrown ... possibly a stack trace, what exactly the input was etc. Please don't make us guess.

kind regards,

Jos

[al_Marshy_1981]

%d is the placeholder for an int type, fraction is a double in your second example so you need to use %f

[pbrockway2]

Jos++

In fact this one is so common (I mean "double" starts with a 'd'...) that Sun's JVM message uncharacteristically tells you what you should have written...

[al_Marshy_1981]

Jos++

In fact this one is so common (I mean "double" starts with a 'd'...) that Sun's JVM message uncharacteristically tells you what you should have written...

haha that is gas

d != java.lang.Double