Read an int from Standard Input with Scanner in Java
Description
The following code shows how to read an int from Standard Input with Scanner.
Example
// ww w. jav a 2 s .c om
import java.util.Scanner;
public class Main {
public static void main(String[] ap) {
int val;
try {
Scanner sc = new Scanner(System.in); // Requires J2SE 1.5
val = sc.nextInt();
} catch (NumberFormatException ex) {
System.err.println("Not a valid number: " + ex);
return;
}
System.out.println("I read this number: " + val);
}
}
The code above generates the following result.
