HashMap with Objects, reading from file, writing to file. (note system)

[Java Dude]

Hello! Im new to the forum, and pretty new to java programming and this forum. I dont exactly know where to post it, so it should be fine here untill some admin/mod moves it to a more correct section.

I am trying to make a note-system for myself so i can store notes about different philosops. I want to be able to write a philosop name and store it into a .txt file named navn.txt i also want to store notes about philosops which i write into the notat.txt file (sorry for not having english variables).

Okey now the reading part works fine. the new problem is :
- When i try to add new names i get this problem. It does store the new name but the system crashes, so i have to start the java index over

Exception in thread "main" java.util.NoSuchElementException
	at java.util.Scanner.throwFor(Scanner.java:907)
	at java.util.Scanner.next(Scanner.java:1530)
	at java.util.Scanner.nextInt(Scanner.java:2160)
	at java.util.Scanner.nextInt(Scanner.java:2119)
	at NotSys.menyValg(index.java:169)
	at NotSys.meny(index.java:164)
	at NotSys.menyValg(index.java:172)
	at NotSys.meny(index.java:164)
	at NotSys.menyValg(index.java:179)
	at NotSys.meny(index.java:164)
	at index.main(index.java:7)

import java.util.*;
import java.io.*;

class index {
	public static void main(String[] args) {
		NotSys s = new NotSys("navn.txt","notat.txt");
		s.meny();
	}
}
class Name {
    String nkey;
    String name;
    String lastname;
    HashMap <String, Note> mnote = new HashMap<String, Note>();
    
    Name(String nkey, String name, String lastname) {
    	this.nkey = nkey;
    	this.name = name;
    	this.lastname = lastname;
    }
    
    void addNote(String nkey, String note) {
    	String kkey = nkey+"-"+note;
    	Note n = mnote.get(kkey);
    	if(n == null) {
    		n = new Note(nkey, note);
    		mnote.put(nkey, n);
    	}
    	else {
    	//	n.oppdater(nkey, note);
    	}
    }
}

class Note {
    String nkey;
    String note;
    Note(String nkey, String note) {
    	this.nkey = nkey;
    	this.note = note;
    }
    /*
    void oppdater(String nkey, String note) {
    	if(nkey == null) {
    		nkey
    		
    	}
    }
    */
}

class NotSys {
    HashMap <String, Name> mname = new HashMap <String,Name>();
    File fil1;
    File fil2;
    
    NotSys(String ffil1, String ffil2) {
    	fil1 = new File(ffil1);
    	fil2 = new File(ffil2);
    	if(fil1.exists()) {
    		try {
    		    Scanner sc = new Scanner(fil1);
    		    sc.useDelimiter("[;\n\r]");
    		    while(sc.hasNext()) {
    		    	//  key;name;lastname (key = name+"-"+lastname)
    		    	// .txt Myname-Mylastname;Myname;Mylastname
    		    	String nkey = sc.next();
    		    	String name = sc.next();
    		    	String lastname = sc.next();
    		    	mname.put(nkey, new Name(nkey, name, lastname));
    		    }
    		    sc.close();
    		}
    		
    		catch (Exception e) {
    		    System.out.println("Error: "+e.getMessage());
    		}
    	}
    	
    	if(fil2.exists()) {
    		try {
    		    Scanner sc = new Scanner(fil2);
    		    sc.useDelimiter("[;\n\r]");
    		    while(sc.hasNext()) {
    		    	// key;note
    		    	//.txt Myname-Mylastname;Note text bla bla bla bla
    		    	String nkey = sc.next();
    		    	String note = sc.nextLine();
    		    	Name name = mname.get(nkey);
    		    	name.addNote(nkey, note);
    		    	sc.close();
    		    }
    		}
    		catch (Exception e) {
    		    System.out.println("Error: "+e.getMessage());
    		}
    	}
    }
     
    void addName(){
	System.out.println();
	System.out.println("#### New name ####");
	try{
	    FileWriter f = new FileWriter(fil1, true);
	    Scanner sc = new Scanner(System.in);
	    System.out.print("Name: ");
	    String name = sc.next();
	    System.out.print("Lastname: ");
	    String lastname = sc.next();
	    String nkey = name+"-"+lastname;
	    f.write(nkey+";"+name+";"+lastname+"\n");	    
	    f.close();
	    sc.close();
    	mname.put(nkey, new Name(nkey, name, lastname));
	}
	catch (Exception e) {
	    System.err.println("Error: "+e.getMessage());
	}
    }
    void addNote(){
	try {
	    FileWriter f = new FileWriter(fil2, true);
	    Scanner sc = new Scanner(System.in);
	    System.out.print("Note: ");
	    String note = sc.nextLine();
	    System.out.print("Name-Lastname: ");
	    String name = sc.next();
	    f.write(name+";"+note+"\n");
	    f.close();
	    sc.close();
	}
	catch (Exception e) {
	    System.err.println("Error: "+e.getMessage());
	}
    }
    

    void allName() {
	Iterator<Name> it = mname.values().iterator();
	int a = mname.size();
	String[] sortname = new String[a];
	int t = 0;
	while (it.hasNext()) {
	    Name n = (Name) it.next();
	    sortname[t] = n.nkey;
	    t++;
	}
	java.util.Arrays.sort(sortname);
	System.out.println("Name Lastname Key");
	for(int j = 0; j < t; j++) {
	    Name n = (Name) mname.get(sortname[j]);
	    System.out.println(n.name+" | "+n.lastname+" | "+n.nkey);
	}
    }

    void meny() {
	System.out.println("");
	System.out.println("");
	System.out.println("#### MENY ####");
	System.out.println("(1) Add new name");
	System.out.println("(2) Add new notes");
	System.out.println("(3) Show all names");
	System.out.println("(10) Exit");
	menyValg();
    }

    void menyValg() {
	Scanner sc = new Scanner(System.in);
	int valg = sc.nextInt();
	switch (valg) {
	case 1 : addName();
	    meny();
	    break;
	case 2 : addNote();
	    meny();
	    break;
	case 3 :// visAlleNoteer();
	    allName();
	    meny();
	case 10 : break ;
	default :
	    System.out.println("Error: Pick a number 1-3 // 10 = Exit!");
	    meny();
	}
	sc.close();
    }
}