type conversion error

Hi I am getting a Type mismatch: cannot convert from java.lang.String to int error. How do I convert between those types?

Code :

package Spiller;
import java.util.Scanner;
 
 
public class Spiller {
 
  private String navn;
  private String adresse;
  private int postNummer;
  private String poststed; 
 
  public Spiller(String initNavn, String initAdresse, int initPostnummer, String initPoststed) {
 
   navn = initNavn;
   adresse = initAdresse;
   postNummer = initPostnummer;
   poststed = initPoststed;
  }
 
 
  public void hentNavn() {
 
 
 
    Scanner myScanner = new Scanner (System.in);
    String input1;
 
    System.out.println("Hva heter du?");
    input1 = myScanner.nextLine();
    navn = input1;
  }
 
 
 public void hentAdresse() {
 
    Scanner myScanner = new Scanner (System.in);
    String input2;
 
    System.out.println("Oppgi adresse: ");
    input2 = myScanner.nextLine();
    adresse = input2;
  }
 
 public void hentPostnummer() {
 
Scanner myScanner = new Scanner (System.in);
    String input3;
 
    System.out.println("Oppgi postnummer: ");
    input3 = myScanner.nextLine();
    postNummer = input3;
 }
 
  public void hentPoststed() {
 
   Scanner myScanner = new Scanner (System.in);
    String input4;
 
    System.out.println("Oppgi poststed: ");
    input4 = myScanner.nextLine();
    poststed = input4;
 }
 
}

Thanx ;)