Java Varargs - Simple Addition.java

import java.io.*;
import java.lang.reflect.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;
// Java 15
class Add {
    public void add(Integer... arguments) {
        Integer numArgs = arguments.length;
        Integer total = 0;
        StringBuilder sb = new StringBuilder();

        for(int i =0; i < numArgs; i++) {
            Integer arg = arguments[i];
            total += arg;
            
            if(i != 0) {
                sb.append("+");
            }
            sb.append(arg);
        }
        
        sb.append("=").append(total);
        System.out.println(sb.toString());
    }
}

public class Solution {

    public static void main(String[] args) {
       try{
            BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
            int n1=Integer.parseInt(br.readLine());
            int n2=Integer.parseInt(br.readLine());
            int n3=Integer.parseInt(br.readLine());
            int n4=Integer.parseInt(br.readLine());
            int n5=Integer.parseInt(br.readLine());
            int n6=Integer.parseInt(br.readLine());
            Add ob=new Add();
            ob.add(n1,n2);
            ob.add(n1,n2,n3);
            ob.add(n1,n2,n3,n4,n5); 
            ob.add(n1,n2,n3,n4,n5,n6);
            Method[] methods=Add.class.getDeclaredMethods();
            Set<String> set=new HashSet<>();
            boolean overload=false;
            for(int i=0;i<methods.length;i++)
            {
                if(set.contains(methods[i].getName()))
                {
                    overload=true;
                    break;
                }
                set.add(methods[i].getName());
                
            }
            if(overload)
            {
                throw new Exception("Overloading not allowed");
            }
            }
            catch(Exception e)
            {
                e.printStackTrace();
            }
        }
}
// Have a amazing life.