Explain that

Question

why is the answer RUNTIME EXCEPTION?
int value = Integer.parse("12.7");

Answer 1

If you want to parse an integer, you should use .parseInt method , moreover, in this case the string must be “12”, not “12.7”
For example:

int value = Integer.parseInt("12");

Answer 2

12.7 is a double/float not an int

Answer 3

Thats fine but if you try Integer.parse("12.7"); it will cause an error

Answer 4

Are you sure that I can't use 12.7 as a String???

Answer 5

I mean
String string = "12.7";

Answer 6

Got it, thanks!