Java is really picky on how primitive data types get converted downward so in that case java requires you to be very explicit on how the change is done when going downwards, and once again we are going to list the data types..
- double x64 bits
- float
- long
- int
- short
- byte
in this example we are going to be going from a double to a int so in order for this to happen we set a double with a variable name of “doubleValue” and set that to 2.99 then create an int with a variable name “intAnswer” once again the name is irrelevant to what i am trying to explain. now we set the int “intAnswer to the (int)doubleValue you must use this syntax to tell the compiler that you know what your doing in order for the conversion to happen or else you will get a compile-time error. after the conversion gets done the value of 2.99 will get truncated to the number 2 integer loosing the precision of the double. here is the example code
double doubleValue = 2.99;
int intAnswer = (int)doubleValue;
Once again the take away from this is to be careful when converting downward or upward.
I always had a passion for the field of STEM (Science, Technology, Engineering, and Math) and I knew I wanted to do something to make a difference in the world. I just didn’t know where to start. I was an immigrant in a new country, grew up in a tough environment, and wasn’t sure how… Read More
