// All examples assume the following static import: import static org.joor.Reflect.*;  String world = on("java.lang.String")  // Like Class.forName()

  .create("Hello World") // Call most specific matching constructor

  .call("substring", 6)  // Call most specific matching substring() method

  .call("toString")

// Call toString()

  .get();

 // Get the wrapped object, in this case a String

public interface StringProxy {

String substring(int beginIndex);
 
}
  String substring = on("java.lang.String")

.create("Hello World")

.as(StringProxy.class) // Create a proxy for the wrapped object

.substring(6);

// Call a proxy method

Employee[] employees = on(department).call("getEmployees").get();
  for (Employee employee : employees) {

Street street = on(employee).call("getAddress").call("getStreet").get();

System.out.println(street);
 
}

try {

Method m1 = department.getClass().getMethod("getEmployees");

Employee employees = (Employee[]) m1.invoke(department);

 for (Employee employee : employees) {

  Method m2 = employee.getClass().getMethod("getAddress");

  Address address = (Address) m2.invoke(employee);

Method m3 = address.getClass().getMethod("getStreet");

  Street street = (Street) m3.invoke(address);

System.out.println(street);

}
 
}
  // There are many checked exceptions that you are likely to ignore anyway  catch (Exception ignore) {

 // ... or maybe just wrap in your preferred runtime exception:
throw new RuntimeException(e);
 
}