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In this post, you will find the solution for Java Varargs Simple Addition-HackerRank Problem. We are providing the correct and tested solutions of coding problems present on HackerRank. If you are not able to solve any problem, then you can take help from our Blog/website.
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Introduction To Java
JAVA was developed by James Gosling at Sun Microsystems Inc in the year 1991, later acquired by Oracle Corporation. It is a simple programming language. Java makes writing, compiling, and debugging programming easy. It helps to create reusable code and modular programs.
Java is a class-based, object-oriented programming language and is designed to have as few implementation dependencies as possible. A general-purpose programming language made for developers to write once run anywhere that is compiled Java code can run on all platforms that support Java. Java applications are compiled to byte code that can run on any Java Virtual Machine. The syntax of Java is similar to c/c++.
Link for the Problem – Java Varargs Simple Addition – Hacker Rank Solution
Java Varargs Simple Addition – Hacker Rank Solution
Objective
You are given a class Solution and its main method in the editor.
Your task is to create the class Add and the required methods so that the code prints the sum of the numbers passed to the function add.
Note: Your add method in the Add class must print the sum as given in the Sample Output
Input Format
There are six lines of input, each containing an integer.
Output Format
There will be only four lines of output. Each line contains the sum of the integers passed as the parameters to add in the main method.
Sample Input
1 2 3 4 5 6
Sample Output
1+2=3 1+2+3=6 1+2+3+4+5=15 1+2+3+4+5+6=21
Java Varargs Simple Addition – Hacker Rank Solution
import java.io.*;
import java.lang.reflect.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;
class Add {
void add(int... numbers) {
StringBuffer sb = new StringBuffer();
int sum = 0;
for (int num : numbers) {
sb.append(num + "+");
sum += num;
}
sb.setCharAt(sb.length() - 1, '=');
sb.append(sum);
System.out.println(sb);
}
}
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();
}
}
}
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