please check this code i run it and get

Exception in thread "main" java.lang.Error: Unresolved compilation problem: string cannot be resolved to a type

at kredimarres/kredimarres.kredimarres.main(kredimarres.java:6)

package kredimarres; public class kredimarres { { public static void main(String[] args) { string emri,mbiemri; double vleraKredise,perTuPaguar; } } //konstruktori kredimarres (String emri,String mbiemri,double vleraKredise,double perTuPaguar){ this.emri=emri; this.mbiemri=mbiemri; this.vleraKredise=vleraKredise; this.perTuPaguar=perTuPaguar;

//metoda per te vendosur shumen "perTuPaguar" pas nje kesti te percaktuar public void set_PageseKredie(double pagese){ System.out.println("Paguaj kestin ne shumen "+pagese+" ......!"); this.perTuPaguar=this.get_PerTuPaguar()-pagese; System.out.println("Paguar. .... RShuma e mbetur per tu paguar pas ketij kesti "+pagese+" is "+get_PerTuPaguar()+" Informacioni i perditesuar...."); this.kredimarresInfo(); } //metoda per te shfaqur informacionin e kredimarresit public void kredimarresInfo(){ System.out.println("<-----Informacioni i Kredimarresit---->"); System.out.println("Emri: "+getEmri()+" Mbiemri: "+getMbiemri()+" Vlera e Kredise: "+getVleraKredise()+" Per tu paguar "+get_PerTuPaguar()); } public String getEmri(){ return this.emri; } public String getMbiemri(){ return this.mbiemri; } public double getVleraKredise(){ return this.vleraKredise; } public double get_PerTuPaguar(){ return this.perTuPaguar; } } //klasa KredimarresTest per te testuar metodat e klases Kredimarres class KredimarresTest{ public static void main(String args[]){ //vlerat e kestit e kredimarresit 1 dhe kredimarresit 2 double krediMarres1_vleraKestit=2000,krediMarres2_vleraKestit=5000; //krijojme dy objekte kredimarres kredimarres krediMarres1=new kredimarres("xyz","s",100000.00d,80000.00d); kredimarres krediMarres2=new kredimarres("pqr","k",200000.00d,50000.00d); //shfaqim informacionin e kredimarresit duke therritur metoden kredimarresInfo() krediMarres1.kredimarresInfo(); krediMarres2.kredimarresInfo(); //kalojme vleren e kestit te secilit kredimarres per te vendosur vleren e re 'perTuPaguar krediMarres1.set_PageseKredie(krediMarres1_vleraKestit); krediMarres2.set_PageseKredie(krediMarres2_vleraKestit); } }