Sample code:
//Just to display, use the below code.
public class ImportCtrlr 
{
    public Map<String, Schema.SObjectType> objs {get; set;}

public ImportCtrlr()
     {
objs = Schema.getGlobalDescribe();
}
}

For manipulation with list of objects:


Visualforce page:

    <apex:page controller=”objectList” >     
    <apex:form >
        <apex:SelectList value=”{!name}” size=”1″>
            <apex:selectOptions value=”{!names}”></apex:selectOptions>
        </apex:SelectList>
    </apex:form>
    </apex:page>

Apex Controller:

    public class objectList
    {
      public String name {get;set;}
     
      public List<SelectOption> getNames()
      {
          List<Schema.SObjectType> gd = Schema.getGlobalDescribe().Values();   
          List<SelectOption> options = new List<SelectOption>();
        
          for(Schema.SObjectType f : gd)
          {
             options.add(new SelectOption(f.getDescribe().getName(),f.getDescribe().getName()));
          }
          return options;
       }
    }

Cheers!!!