英文:
Java Scanner from second method
问题
import java.util.Scanner;
public class Main {
    static void checkAge() {
        Scanner new_age = new Scanner(System.in);
        int age = new_age.nextInt();
        System.out.println("Enter your age");
        if (age < 18) {
            System.out.println("You are a minor");
        } else {
            System.out.println("You are of appropriate age");
        }
    }
    public static void main(String[] args) {
        checkAge();
    }
}
英文:
I am having problem to invoke Scanner class from second method in main method. My code is this:
import java.util.Scanner;
public class Main{
    
    static void checkAge(int age){
        Scanner new_age = new Scanner(System.in);
        age = new_age.nextInt();
        System.out.println("Enter your age");
        if(age < 18){
            System.out.println("You are a minor");
        } else {
            System.out.println("You are of apropriate age");
        
        }
    }
    
    public static void main(String[] args){
        checkAge();
    }
}
I get an error:
> Main.java:18: error: '.class' expected
>         checkAge(Scanner.new_age(int));
>                                     ^ 1 error
答案1
得分: 0
调用函数并传递参数:checkAge(18); 或 checkAge(15); 因为checkAge()需要参数来检查条件。
英文:
Call you function with arguments : checkAge(18); or checkAge(15);as you checkAge() requires parameters to check the conditions.
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