public class Cajero {

	public static void billete (int importe) {
		int billetes[] = {500,200,100,50,20,10,5,2,1};
		int devolver[] = {0,0,0,0,0,0,0,0,0};

		for(int i=0;i<billetes.length;i++) {
            if(importe>=billetes[i]) {
                devolver[i]=(int) Math.floor(importe/billetes[i]);
                importe=importe-(devolver[i]*billetes[i]);
            }
        }
        for(int i=0;i<billetes.length;i++) {
            if(devolver[i]>0) {
                if(billetes[i]>2) {
                    System.out.println("Hay "+devolver[i]+" billete(s) de: "+billetes[i]+" Euros");
                }else{
                    System.out.println("Hay "+devolver[i]+" moneda(s) de: "+billetes[i]+" Euros");
                }
            }
        }
	}
	public static void main(String[] args) {
		int importe = (int)(Math.random()*10000+1);
        do{
            try{
                System.out.println("El importe son: "+importe+" euros");
            }catch(Exception e){
                System.out.println("Introduciste un dato erroneo.");
                System.out.println("");
            }
        }while(importe<=0);
        billete(importe);
	}

}