For Java15

import java.util.Scanner;

class Solution
{
    public static void main(String args[])
    {
        Scanner sc = new Scanner(System.in);
        
        int n = sc.nextInt();
        double d = sc.nextDouble();
        sc.nextLine();
        String s = sc.nextLine();
        
        sc.close();
        
        System.out.println("String: " + s);
        System.out.println("Double: " + d);
        System.out.println("Int: " + n);
    }
}

solution

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import java.util.Scanner;

public class Solution {

public static void main(String[] args) {
    Scanner scan = new Scanner(System.in);
    int i = scan.nextInt();
    double d = scan.nextDouble();
    scan.nextLine();
    String s = scan.nextLine();

    System.out.println("String: " + s);
    System.out.println("Double: " + d);
    System.out.println("Int: " + i);
}

}