Cannot convert String to Integer in Java

2018-06-06 18:24:58

This question already has an answer here:

How do I convert a String to an int in Java? 30 answers

Here's the way I prefer to do it:

Edit (08/04/2015):

As noted in the comment below, this is actually better done like this:

String numStr = "123";
int num = Integer.parseInt(numStr);

An Integer can't hold that value. 6042076399 (413424640921 in decimal) is greater than 2147483647, the maximum an integer can hold.

Try using Long.parseLong .

That's the correct method, but your value is larger than the maximum size of an int .

The maximum size an int can hold is 231 - 1, or 2,147,483,647. Your value is 6,042,076,399. You should look at storing it as a long if you want a primitive type. The maximum value of a long is significantly larger - 263 - 1. Another option might be BigInteger .

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