public class OppQueryvalues {
    public static void StoreConlistData(){
        List<Contact> clist = new List<Contact>();
        List<Opportunity> opplist = [SELECT name from Opportunity];
        for(opportunity opp: Opplist){
            contact con = new contact();
            con.lastName= opp.name;
            clist.add(con);
        }
        insert clist;
       system.debug('erty' +clist);
    }
}