From string to int in java

Question

int mph;
int speed = (int) mph;
System.out.println("What is your current speed?");
mph = in.nextLine()

How do I convert the int from a string, when I use my scanner?
The error states: Type mismatch: cannot convert from String to int

Answer 1

If a user enters a String instead of int, use Exception handling
import java.util.Scanner;

class MyClass {
public static void main(String[ ] args) {
Scanner sc = new Scanner(System.in);

try{ System.out.println(sc.nextInt()); }

catch(java.util.InputMismatchException e){
System.out.println("?");

}

}
}

Answer 2

if you want an integer input from Scanner, use nextInt() method.

Scanner s = new Scanner(System.in);
int mph = s.nextInt();

for reference you can see the below code:
https://code.sololearn.com/czaZjwJ5fBz1/?ref=app

Answer 3

Thank you