diff --git a/Roadmap/29 - SOLID ISP/java/danhingar.java b/Roadmap/29 - SOLID ISP/java/danhingar.java
new file mode 100644
index 0000000000..7bcc4cbadd
--- /dev/null
+++ b/Roadmap/29 - SOLID ISP/java/danhingar.java	
@@ -0,0 +1,169 @@
+public class danhingar {
+
+    public static void main(String[] args) {
+        Machine machine = new Machine();
+        machine.eat();
+        Human human = new Human();
+        human.eat();
+
+        //CON ISP
+        Machine1 machine1 = new Machine1();
+        machine1.work();
+
+        Human1 human1 = new Human1();
+        human1.eat();
+        human1.work();
+
+        //Extra
+        Printer printer1 = new Printer();
+        printer1.print("doc.pdf");
+
+        ColorPrinter printer2 = new ColorPrinter();
+        printer2.printColor("doc.pdf");
+
+        MultifunctionPrinter printer3 = new MultifunctionPrinter();
+        printer3.print("doc.pdf");
+        printer3.printColor("doc.pdf");
+        printer3.scan("doc.pdf");
+        printer3.sendFax("doc.pdf");
+    }
+
+}
+
+// SIN ISP
+interface WorkerInteface {
+
+    void work();
+
+    void eat();
+}
+
+class Human implements WorkerInteface {
+
+    @Override
+    public void eat() {
+        System.out.println("Comiendo");
+    }
+
+    @Override
+    public void work() {
+        System.out.println("Trabajando");
+    }
+
+}
+
+class Machine implements WorkerInteface {
+
+    @Override
+    public void eat() {
+    }
+
+    @Override
+    public void work() {
+        System.out.println("Trabajando");
+    }
+
+}
+
+// CON ISP
+
+interface WorkInterface {
+    void work();
+
+}
+
+interface EatInterface {
+    void eat();
+
+}
+
+
+class Human1 implements WorkInterface,EatInterface {
+
+    @Override
+    public void eat() {
+        System.out.println("Comiendo");
+    }
+
+    @Override
+    public void work() {
+        System.out.println("Trabajando");
+    }
+
+}
+
+class Machine1 implements WorkInterface {
+
+    @Override
+    public void work() {
+        System.out.println("Trabajando");
+    }
+
+}
+
+
+//EXTRA
+interface PrinterInterface{
+    void print(String document);
+}
+
+interface PrinterColorInterface {
+    void printColor(String document);
+}
+
+interface ScannerInterface{
+    void scan(String document);
+}
+
+interface FaxInterface{
+    void sendFax(String document);
+}
+
+class Printer implements PrinterInterface{
+
+    @Override
+    public void print(String document) {
+        System.out.printf("Imprimiendo en blanco y negro el documento %s.\n",document);
+    }
+
+    
+}
+
+class ColorPrinter implements PrinterColorInterface {
+
+    @Override
+    public void printColor(String document) {
+        System.out.printf("Imprimiendo a color el documento %s.\n",document);
+    }
+
+}
+
+class MultifunctionPrinter implements PrinterInterface,PrinterColorInterface,ScannerInterface,FaxInterface {
+
+    @Override
+    public void sendFax(String document) {
+        System.out.printf("Enviado por fax el documento %s.\n",document);
+    }
+
+    @Override
+    public void scan(String document) {
+        System.out.printf("Escaneando el documento %s.\n",document);
+        System.out.printf("Documento %s escaneado.\n",document);
+    }
+
+    @Override
+    public void printColor(String document) {
+        System.out.printf("Imprimiendo a color el documento %s.\n",document);
+    }
+
+    @Override
+    public void print(String document) {
+        System.out.printf("Imprimiendo en blanco y negro el documento %s.\n",document);
+    }
+
+    
+}
+
+
+
+