java.net.ConnectException: Connection refused: connect

import java.io.DataInputStream;
import java.io.InputStream;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;
 
 
public class Cliente {
	//Constantes
	final int PUERTO = 7000;
	//final String HOST = "192.168.1.36";
 
	/************/
 
	//Métodos - constructor
	public Cliente(){
 
		try{
			InetAddress address = InetAddress.getLocalHost();
			Socket skCliente;
 
			skCliente = new Socket(address, PUERTO);
			InputStream aux = skCliente.getInputStream();
			DataInputStream flujo = new DataInputStream(aux);
			System.out.println(flujo.readUTF());
			skCliente.close();
 
		} catch(UnknownHostException e){
			System.out.println( e );
		    System.out.println("Error en la conexión." );
 
		} catch (Exception e) {
			System.out.println(e);
 
		}
	}
 
	//Cuerpo del programa
	public static void main(String[] args){
		new Cliente();
 
 
	}
 
}
 

import java.io.DataOutputStream;
import java.io.OutputStream;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.UnknownHostException;
 
 
public class Servidor {
	//Constantes
	final int MAX_CLIENTES = 5;
	final int PUERTO = 7000;
	/************/
 
	//Métodos - constructor
	public Servidor(){
		ServerSocket skServidor;
		try {
			skServidor = new ServerSocket(PUERTO);
			System.out.println("Escucho el puerto: "+PUERTO);
			for(int numCli = 0; numCli < MAX_CLIENTES; numCli++){
				Socket skCliente = skServidor.accept();
				System.out.println("\tSirvo al cliente: "+skCliente.getRemoteSocketAddress());
				OutputStream aux = skCliente.getOutputStream();
				DataOutputStream flujo = new DataOutputStream(aux);
				flujo.writeUTF("\nHola cliente "+ skCliente.getRemoteSocketAddress());
				skCliente.close();
			}
 
		} catch(UnknownHostException e){
			System.out.println( e );
		    System.out.println("Error en la conexión." );
 
		}
		    catch (Exception e) {
			// TODO Auto-generated catch block
			System.out.println(e);
		}
	}
 
	public static void main(String[] args){
		new Servidor();
	}
}