How to convert lead using Apex

How to convert lead using Apex

Lead myLead = new Lead(LastName = 'Foo', Company='Foo Bar');

insert myLead;

Database.LeadConvert lc = new database.LeadConvert();

lc.setLeadId(myLead.id);

LeadStatus convertStatus = [SELECT Id, MasterLabel FROM LeadStatus WHERE IsConverted=true LIMIT 1];

lc.setConvertedStatus(convertStatus.MasterLabel);

Database.LeadConvertResult lcr = Database.convertLead(lc);

System.assert(lcr.isSuccess());