guice provides a way to create bindings with value objects or constants. consider the case where we want to configure jdbc url.

inject using @named annotation

@inject
public void connectdatabase(@named("jbdc") string dburl) {
   //...
}

this can be achived using toinstance() method.

bind(string.class).annotatedwith(names.named("jbdc")).toinstance("jdbc:mysql://localhost:5326/emp");

complete example

create a java class named guicetester.

guicetester.java

import com.google.inject.abstractmodule;
import com.google.inject.guice;
import com.google.inject.inject;
import com.google.inject.injector;
import com.google.inject.name.named;
import com.google.inject.name.names;

public class guicetester {
   public static void main(string[] args) {
      injector injector = guice.createinjector(new texteditormodule());
      texteditor editor = injector.getinstance(texteditor.class);
      editor.makeconnection();
   } 
}

class texteditor {
   private string dburl;
   @inject
   public texteditor(@named("jdbc") string dburl) {
      this.dburl = dburl;
   }

   public void makeconnection(){
      system.out.println(dburl);
   } 
}

//binding module
class texteditormodule extends abstractmodule {

   @override
   protected void configure() {
      bind(string.class)
         .annotatedwith(names.named("jdbc"))
         .toinstance("jdbc:mysql://localhost:5326/emp");
   } 
}

output

compile and run the file, you will see the following output.

jdbc:mysql://localhost:5326/emp