Converting String to Integer

[Olivier Legat]

Hello everyone,

I'm having a little bit of trouble converting a string a an integer:

public class StringToInt
{
    public static void main(String[]args)
    {
    String string1 = "  5";
    String string2 = " 4";
    try{
    int int1 = Integer.parseInt(string1);
    int int2 = Integer.parseInt(string2);
    int sum = int1 + int2;
    System.out.print(sum);
    }
    
    catch(Exception e){
    System.out.println("Not possible, one of them or both isn't a number");
    }
    }
}

If I set string1 = "5" and string2 = "4" the output is "9". But like I excepted it doesn't work when the strings have spaces in them . How do I remove does spaces in the beginning? Does anyone know a built-in method from the APIs or an alternative way around this problem

Thank-you

[edit - change 'quote' tags to 'code' tags]
[ February 29, 2008: Message edited by: fred rosenberger ]

[Joanne Neal]

String.trim()

[fred rosenberger]

Olivier,

I change your post a little. When you want to post code, don't use the 'quote' tags, but the 'code' tags. This will preserve your formatting, making it easier to read.

[Olivier Legat]

Oh oops. My bad. Thanks for fixing it

[Campbell Ritchie]

Go through the Integer class; there are probably several methods and a constructor which take Strings as parameters.