not executing

Question

import java.util.*;

class Student
{
int sno;
String sname;
int m;
int p;
int c;
}

void input()
{
Scanner s=new Scanner(System.in);

System.out.print("Enter the student number:");
sno=s.nextInt();

System.out.print("Enter the student name:");
sname=s.nextLine();

System.out.print("Enter maths marks:");
m=s.nextInt();

System.out.print("Enter physics marks:");
p=s.nextInt();

System.out.print("Enter chemistry marks:");
c=s.nextInt();

}

void output()
{

System.out.println("Student no ::"+sno);
System.out.println("Student name ::"+sname);
System.out.println("Stuent maths marks ::"+m);
System.out.println("Student physics marks ::"+p);
System.out.println("Student chemistry marks ::"+c);

}
class Test1

{

public static void main(String[] args)

{

Student s1=new Student();

s1.input();
s1.output();

}

}

Answer 1

I don't know what is the problem with playground.
In the IDE this code works.

import java.util.Scanner;

class Student {
    int sno;
    String sname;
    int m;
    int p;
    int c;

    void input() {
        System.out.print("Enter the student number:");
        sno = new Scanner(System.in).nextInt();

        System.out.print("Enter the student name:");
        sname = new Scanner(System.in).nextLine();

        System.out.print("Enter the student2 name:");
        sname = new Scanner(System.in).nextLine();

        System.out.print("Enter maths marks:");
        m = new Scanner(System.in).nextInt();

        System.out.print("Enter physics marks:");
        p = new Scanner(System.in).nextInt();

        System.out.print("Enter chemistry marks:");
        c = new Scanner(System.in).nextInt();
    }

    void output() {
        System.out.println("Student no  ::" + sno);
        System.out.println("Student name  ::" + sname);
        System.out.println("Stuent maths marks  ::" + m);
        System.out.println("Student physics marks  ::" + p);
        System.out.println("Student chemistry marks  ::" + c);
    }
}

class Test1
{
    public static void main(String[] args)
    {
        Student s1=new Student();
        s1.input();
        s1.output();
    }
}

Answer 2

You can not put methods outside of a class

Answer 3

thank u

Answer 4

can you re_right the program