dont know some git issues i dont fully understand

.project

@@ -20,4 +20,15 @@
 		<nature>org.eclipse.jdt.core.javanature</nature>
 		<nature>org.eclipse.m2e.core.maven2Nature</nature>
 	</natures>
+	<filteredResources>
+		<filter>
+			<id>1676329080234</id>
+			<name></name>
+			<type>30</type>
+			<matcher>
+				<id>org.eclipse.core.resources.regexFilterMatcher</id>
+				<arguments>node_modules|\.git|__CREATED_BY_JAVA_LANGUAGE_SERVER__</arguments>
+			</matcher>
+		</filter>
+	</filteredResources>
 </projectDescription>

.settings/org.eclipse.core.resources.prefs

@@ -0,0 +1,4 @@
+eclipse.preferences.version=1
+encoding//src/main/java=UTF-8
+encoding//src/test/java=UTF-8
+encoding/<project>=UTF-8

.vscode/launch.json

@@ -1,5 +1,12 @@
 {
     "configurations": [
+        {
+            "type": "java",
+            "name": "Launch App",
+            "request": "launch",
+            "mainClass": "com.dsa.app.App",
+            "projectName": "my-app"
+        },
         {
             "type": "java",
             "name": "Launch App",

cspell.json

@@ -0,0 +1,9 @@
+{
+    "version": "0.2",
+    "ignorePaths": ["src"],
+    "dictionaryDefinitions": [],
+    "dictionaries": [],
+    "words": [],
+    "ignoreWords": [],
+    "import": []
+}

src/main/java/com/dsa/app/AnioBisiesto.java

@@ -0,0 +1,7 @@
+package com.dsa.app;
+
+public class AnioBisiesto{
+    public static boolean esBisiesto(int anio){
+        return (anio % 4 == 0 && anio % 400 == 0);
+    }
+}

src/main/java/com/dsa/app/App.java

@@ -0,0 +1,21 @@
+/*----------------------------------------------------------------------------------------
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License. See LICENSE in the project root for license information.
+ *---------------------------------------------------------------------------------------*/
+
+package com.dsa.app;
+
+public class App {
+    public static void main(String[] args) {
+        // System.out.println("Hello Remote World!");
+        // System.out.println(Factorial.getFactorial(5));
+        // System.out.println(NumeroFuerte.esNumeroFuerte(145));
+        // System.out.println(Primo.esPrimo(4));
+        // StarLadder.buildLadder(5);
+        Racional a = new Racional(7,9);
+        Racional suma = a.suma(new Racional(7,8));
+        System.out.println(suma.getString());
+        // a.getString();
+
+    }
+}

src/main/java/com/dsa/app/Factorial.java

@@ -0,0 +1,14 @@
+package com.dsa.app;
+
+
+public class Factorial {
+    public static int getFactorial(int n){
+        if(n < 1){throw new Error();}
+        int i = 1, fact = 1;
+        while(i<=n){
+            fact *= i;
+            i++;
+        }
+        return fact;
+    }
+}

src/main/java/com/dsa/app/NumeroFuerte.java

@@ -0,0 +1,15 @@
+package com.dsa.app;
+
+/**
+ * NumeroFuerte
+ */
+public class NumeroFuerte {
+    public static boolean esNumeroFuerte(int n){
+        int original = n, sum = 0;
+        while(n >= 1){
+            sum += Factorial.getFactorial(n%10);
+            n /= 10;
+        }
+        return original == sum;
+    }
+}

src/main/java/com/dsa/app/Primo.java

@@ -0,0 +1,14 @@
+package com.dsa.app;
+
+public class Primo {
+    public static boolean esPrimo(int n){
+        int i = 2;
+        if(n < i){return false;}
+        while(i < n/2+1 ){
+            if(n % i == 0)
+              return false;
+            i++;
+        }
+        return true;
+    }
+}

src/main/java/com/dsa/app/Racional.java

@@ -0,0 +1,27 @@
+package com.dsa.app;
+
+public class Racional {
+    int num;
+    int den;
+    public Racional(){
+        this.num = 1;
+        this.den = 1;
+    }
+    public  Racional(int num, int den){
+        this.num = num;
+        this.den = den;
+    }
+
+    public Racional suma(Racional a){
+        return new Racional(this.num*a.den + this.den*a.num, this.den*a.den);
+    }
+
+    public static Racional resta(Racional a, Racional b){
+        return new Racional(a.num*b.den - a.den * b.num, a.den * b.den);
+    }
+
+    public String getString(){
+        String string = new String(this.num + "/" + this.den);
+        return string;
+    }
+}

src/main/java/com/dsa/app/StarLadder.java

@@ -0,0 +1,39 @@
+package com.dsa.app;
+
+public class StarLadder {
+    public static void buildLadder(int n){
+        for (int i = 0; i < n; i++) {
+            for (int j = 0; j < n-i; j++) {
+                System.out.print("*");   
+            }
+            System.out.println();
+        }
+
+        for (int i = 0; i < n; i++) {
+            for (int j = 1; j < n-i; j++) {
+                System.out.print(" ");   
+            }
+            for (int j = 0; j < i+1; j++) {
+                System.out.print("*");   
+            }
+            System.out.println();
+        }
+
+        for (int i = 0; i < n; i++) {
+            for (int j = 0; j < i+1; j++) {
+                System.out.print("*");   
+            }
+            System.out.println();
+        }
+
+        for (int i = 0; i < n; i++) {
+            for (int j = 0; j < i; j++) {
+                System.out.print(" ");   
+            }
+            for (int j = 0; j < n-i; j++) {
+                System.out.print("*");   
+            }
+            System.out.println();
+        }
+    }
+}