From 5da520b765c45e99736498f7c8fe8463a65dbf89 Mon Sep 17 00:00:00 2001
From: 250406 <250406@localhost>
Date: Mon, 24 Nov 2025 17:01:10 +0000
Subject: [PATCH] exercicio 15

---
 pom.xml                                    | 13 ++++++
 src/main/java/com/mycompany/nifs/Nifs.java | 50 ++++++++++++++++++++++
 2 files changed, 63 insertions(+)
 create mode 100644 pom.xml
 create mode 100644 src/main/java/com/mycompany/nifs/Nifs.java

diff --git a/pom.xml b/pom.xml
new file mode 100644
index 0000000..7a8d1ef
--- /dev/null
+++ b/pom.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>com.mycompany</groupId>
+    <artifactId>nifs</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <packaging>jar</packaging>
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <maven.compiler.release>24</maven.compiler.release>
+        <exec.mainClass>com.mycompany.nifs.Nifs</exec.mainClass>
+    </properties>
+</project>
\ No newline at end of file
diff --git a/src/main/java/com/mycompany/nifs/Nifs.java b/src/main/java/com/mycompany/nifs/Nifs.java
new file mode 100644
index 0000000..7bdd071
--- /dev/null
+++ b/src/main/java/com/mycompany/nifs/Nifs.java
@@ -0,0 +1,50 @@
+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ */
+
+package com.mycompany.nifs;
+
+import java.util.Scanner;
+
+/**
+ *
+ * @author 250406
+ */
+public class Nifs {
+
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+        System.out.println("NIF");
+        String nif = scanner.nextLine();
+        if(nif.length()!= 9){
+            System.out.println("Invalido");
+        }
+        else{
+            int multiplicador = 9;
+            int soma = 0;
+            for(int i = 0; i < nif.length() - 1; i++){
+                int digito = Integer.parseInt(String.valueOf(nif.charAt(i)));
+           int multiplicacao = digito * multiplicador;
+           soma += multiplicacao;
+           multiplicador--;   
+            }
+           int resto = soma % 11;
+           int digitoControlo;
+           if(resto == 0 || resto == 1){
+               digitoControlo = 0;
+           }
+           else{
+               digitoControlo = 11 - resto;
+           }
+           int nonoDigito = Integer.parseInt(String.valueOf(nif.charAt(8)));
+           if(nonoDigito == digitoControlo){
+               System.out.println("Valido");
+              
+           }
+           else{
+               System.out.println("Invalido");
+           }
+        }
+        
+    }
+}