diff --git a/EF4.java b/EF4.java
new file mode 100644
index 0000000..3deb230
--- /dev/null
+++ b/EF4.java
@@ -0,0 +1,70 @@
+package ef4;
+
+import javax.swing.JFrame;
+import javax.swing.WindowConstants;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import javax.swing.JButton;
+import javax.swing.JLabel;
+import javax.swing.JTextField;
+
+public class EF4 extends JFrame  {
+    public JLabel texto;
+    public JLabel texto2;
+    public JLabel texto3;
+    public JTextField caja;        
+    public JButton boton;  
+	public static void main(String args[]){
+            
+					EF4 ventana = new EF4();
+          ventana.show();
+          
+	}
+  public EF4(){
+    super();
+    setSize(250, 300);
+    setTitle("Sumadora");
+    setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
+    setResizable(false);
+    setLocationRelativeTo(null);
+    setLayout(null);  
+        texto = new JLabel();
+        texto2 = new JLabel();
+        texto3 = new JLabel();
+        caja = new JTextField();
+        boton = new JButton();
+        texto.setText("Inserte Listado de numeros"); 
+        texto.setBounds(50, 50, 200, 25);  
+        texto2.setText("Resultado:"); 
+        texto2.setBounds(50, 150, 100, 25);  
+        texto3.setBounds(50, 170, 50, 25);  
+        caja.setBounds(40, 75, 175, 30);   
+        caja.setText("212,31,50,10,23,4,1,0,25");
+        boton.setText("Sumar");  
+        boton.setBounds(80, 120, 80, 30);  // colocamos posicion y tamanio al boton (x, y, ancho, alto)
+        this.add(texto);
+        this.add(texto2);
+        this.add(texto3);
+        this.add(caja);
+        boton.addActionListener(new ActionListener() {
+        @Override
+        public void actionPerformed(ActionEvent e) {
+            texto3.setText(getSuma(caja.getText()));
+        }
+        });
+        this.add(boton);
+  }
+  public String getSuma(String entrada){
+    String[] numeros = entrada.split(",");
+    int suma = 0;
+    int valor =0;
+    //Realizar suma
+    for(String numero:numeros)
+    {
+        int N = Integer.parseInt(numero);
+        suma = valor + N;
+        valor = suma;
+    }
+    return suma+"";
+  }
+}
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