Cast object (type double) to int

Question

Okay, so if I have this code

double a=1.5;
int b=(int)a;
System.out.println(b);

Everything works fine, but

Object a=1.5;
in         


        

Answer 1

I am not sure why your code works at all. You should not be able to cast Object to 'double' because they are incompatible types. Also casting type int to double are incompatible types. Your first block of code:

double a=1.5;
int b=(int)a;
System.out.println(b);

will print "1". You will lose the decimals. If you want to just print the number before the decimal point then you can format your double when you print and you won't need to cast to type int.

But the reason the other don't work is because you are trying to cast to an incompatible type. It is strange that you say the last two blocks of code

Object a=1.5;
double b=(double)a;
int c=(int)b;
System.out.println(c);


Object a=1.5;
int b=(int)(double)a;
System.out.println(b);

These should not work because of incompatible types.