Dip into JTable

Find the second smallest among three numbers

import java.util.*;
public class Prog{
public static void main(String... args){
       Scanner in = new Scanner(System.in);
       int a,b,c,d,e;
       System.out.print("Enter 1st num: ");
       a = in.nextInt();
       System.out.print("Enter 2nd num: ");
       while((b=in.nextInt())==a){
             System.out.print("Duplicate.. Try again : ");
       }
       System.out.print("Enter 3rd num: ");
       while((c=in.nextInt())==b || c ==a){
               System.out.print("Duplicate.. Try again : ");
        }
        d = Math.min(a,b);
        e = Math.max(d,c);
        System.out.println(+e);
    }
}

What is Object class in Java?

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