Convert a string value into an int [duplicate]

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.

Doubleripper

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? – Marjoriemarjory

@BBdev Actually, OP's code is the answer on that question. That question says nothing about decimals in the String. – Marjoriemarjory

Answer 1

What about:

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

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

Londoner

Answer 2

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);

Effuse