Really long repeating list of errors in eclipse java?

I've been making a quiz in java, and everything seems fine, but when i tested it, it gave me a long list of errors. This is the whole code:
Main class:

public class Main {
	public static void main(String args[]){
		Methods me = new Methods();
		me.menu();
	}
}

Methods class:

import java.util.Scanner;
import java.util.Random;

public class Methods {
	//Attributes
//-------------------------------------------------------------------
	private int correctq = 0;
	private int incorrectq = 0;
	private int totalq = 0;
	private Questions qe = new Questions();
	private Scanner sc = new Scanner(System.in);
	private Random ra = new Random();
	
	//Methods
//-------------------------------------------------------------------
	public void menu(){
		cls();
		
		System.out.println("This is a quiz that will generate a\nrandom question for you to answer!");
		System.out.println();
		System.out.println("Do you want to continue? Y/N");
		
		char YN = sc.nextLine().charAt(0);
		
		if(YN == 'Y' || YN == 'y'){
			randomq();
		}
		if(YN == 'N' || YN == 'n'){
			System.exit(0);
		}
	}
	
	public void correct(){
		cls();
		correctq++;
		totalq++;
		System.out.println("Correct!\nDo you want another question? Y/N");
		
		char YN = sc.nextLine().charAt(0);
		if(YN == 'Y' || YN == 'y'){
			randomq();
		}
		if(YN == 'N' || YN == 'n'){
			end();
		}
	}
	
	public void incorrect(){
		cls();
		incorrectq++;
		totalq++;
		System.out.println("Incorrect!\nDo you want another question? Y/N");
		
		char YN = sc.nextLine().charAt(0);
		if(YN == 'Y' || YN == 'y'){
			randomq();
		}
		if(YN == 'N' || YN == 'n'){
			end();
		}
	}
	
	public void end(){
		cls();
		System.out.println("Game finished!\nYou got " + correctq + "/" + totalq + " correct questions");
		System.out.println("You got " + incorrectq + "/" + totalq + " incorrect questions");
		System.out.println("Total questions answered: " + totalq);
		System.out.println("Do you want to go back to menu? Y/N");
		
		char YN = sc.nextLine().charAt(0);
		if(YN == 'Y' || YN == 'y'){
			menu();
		}
		if(YN == 'N' || YN == 'n'){
			System.exit(0);
		}
	}
	
	public void randomq(){
		int rand = 1+ra.nextInt(5);
		if(rand == 1){
			qe.q1();
		}
		if(rand == 2){
			qe.q2();
		}
		if(rand == 3){
			qe.q3();
		}
		if(rand == 4){
			qe.q4();
		}
		if(rand == 5){
			qe.q5();
		}
	}
	
	public void cls(){
		for(int counter = 0; counter <= 10; counter++){
			System.out.println();
		}
	}
	
}

Questions class:

import java.util.Scanner;

public class Questions {
	private Scanner sc = new Scanner(System.in);
	private Methods me = new Methods();
	//I haven't created the questions themselves yet
	public void q1(){}
	
	public void q2(){}
	
	public void q3(){}
	
	public void q4(){}
	
	public void q5(){}
}

But when i run it i get a really long list of errors, at the top it says
Exception in thread "main" java.lang.StackOverflowError
at java.lang.StringBuffer.setLength(Unknown Source)
at java.text.DecimalFormat.expandAffix(Unknown Source)
at java.text.DecimalFormat.expandAffixes(Unknown Source)
at java.text.DecimalFormat.applyPattern(Unknown Source)
at java.text.DecimalFormat.<init>(Unknown Source)
at java.text.NumberFormat.getInstance(Unknown Source)
at java.text.NumberFormat.getNumberInstance(Unknown Source)
at java.util.Scanner.useLocale(Unknown Source)
at java.util.Scanner.<init>(Unknown Source)
at java.util.Scanner.<init>(Unknown Source)
And then it keeps saying
at Questions.<init>(Questions.java:4)
at Methods.<init>(Methods.java:9)
over and over and over again.
The problem is that i have no idea why I'm getting all these errors! I'm using Eclipse Juno.