I need source code to read an integer in java

Question

Pls answer me

Answer 1

int integer = scanner.nextInt();

or

int integer = Integer.parseInt(scanner.nextLine());

Answer 2

https://code.sololearn.com/cHo98F3aWYK3/?ref=app

Answer 3

import java.util.Scanner;
public class Program
{
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int x = Integer.valueOf(sc.nextLine().replaceAll("\\D", ""));
System.out.print(x);
}
}
---
Don't forget sc.nextLine() can recieve numbers, words and numbers with letters. So you need to use regex.