another silly question

[Joe Panully]

If i have a number, make it a string, and then take a sub string of it
i.e
int i=423;
String iVal=""+i;
String subval=iVal.substring(1,2);
I now should have a substring with 4
My question is, i am not sure of the syntax used to "parse" something to something else.
If I want to parse this substring "subval" to an integer I know I do <i>something</i> like this:
int subval=Integer.parseInt(subval);
but I am not sure of the exact syntax

[Joyce Lee]

Hi Joe,

Are you trying to break the value 423?

Here is an example:

public class Test {
    public static void main(String[] args) {
        int i = 423;
 
        int j = i / 100;
        System.out.println(j);  // output is 4  
 
        j = i % 100;
        System.out.println(j);  // output is 23
 
        j = j % 10;
        System.out.println(j);  // output is 3
    }
}

Joyce
[ October 10, 2004: Message edited by: Joyce Lee ]

[Mike Gershman]

 int i=423;
String iVal=""+i;
String subval=iVal.substring(1,2); 

subval = "2"

String character positions start at 0.

substr( firstPosition, lastPosition+1 )

So substr(1,2) selects the second character

 int subval=Integer.parseInt(subval); 

Your syntax is fine, but is subval an int or a String?

[Joe Panully]

Thanks!