Convert a string value into an int

Question

How to convert string value into int? I am getting number format exception.

String s = "20.00";
int i = (Integer.parseInt(s));
System.out.println(i);

Result should be like i=20.

If there's a decimal in your string, I assume that it may be possible to have an actual decimal after it? In the case of `20.60` what do you expect the integer to be? — Cruncher, Oct 25 '13 at 12:50
@BBdev Actually, OP's code is the answer on that question. That question says nothing about decimals in the String. — Cruncher, Oct 25 '13 at 12:56

score 12 · Accepted Answer · answered Oct 25 '13 at 12:48

12

What about:

int i = (int) Double.parseDouble(s);

Of course, "20.00" is not in a valid integer format.

answered Oct 25 '13 at 12:48

arshajii

score 2 · Answer 2 · answered Oct 25 '13 at 12:47

String s = "20.00";

is not valid Integer value that is the reason its throwing NumberFormatException.

Format your number using either Double or Float then using narrow casting cast you number to int but you may loose precision if exists.

i.e. int I = (int) Double.parseDouble(str);

2 Answers2