The latest program i wrote!!

[A.N.H]

here is the latest program i wrote, its a teaching instructor for math operations, u can chose your level skill, it will calculate your score after ten answer (or more if u get stuck in one), and comments on your answers, i know its kinda basic (since i still dont know how to program using array and stuff like, that i will teach myself these things soon though), anywayz can u check it out, tips, hints and stuff like that is more then welcomed of course.

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


public class Quiz 
{
	int level;
	int cho;
	int Num1;
	int Num2;
	int Add;
	int Sub;
	double Div;
	int Mul;
	int NumofCorrect = 0;
	double precen= NumofCorrect / 10;
	int counter = 0;
	
	private void incaseright( int x )
	{
		switch ( x )
		{
		case 4:
			System.out.println("You gots it bro, you gots it, lets do another 1");
			break;
		case 3:
			System.out.println("Call the fire department, this guy is on fire, lets c if u can do this");
			break;
		case 2:
			System.out.println("THAT IS WRONG!!!, kidding your right dawg, try this 1");
			break;
		case 1:
			System.out.println("if i could buy u a lapdance i would, goodjob bro, get this right & i just might");
			break;
		default:
			System.out.println("Who is your daddy, its you dawg!!, now solve this");
		}		
		
	}
	
	private void incasewrong( int x )
	{
		switch ( x )
		{
		case 0:
			System.out.println("What has u been smoking!!, try again");
			break;
		case 1:
			System.out.println("****, your wrong...i should have bet on someone else, again");
			break;
		case 2:
			System.out.println("you call that an answer, my dog can answer better than u, try m8");
			break;
		case 3:
			System.out.println("stop looking at that hot gal beside u and focus, gal like to date smart lads, try again");
			break;
		default:
			System.out.println("yo dawg, concentrate, u can do it, i think..., try again");
			
		}
	}
	
	
	
	
	private void GenerateQ()
	{
		
		
		Random rand = new Random();
		
		Num1 =  level *(rand.nextInt(11) );
		Num2 = level * (1 + rand.nextInt(11) );
		Mul = Num1 * Num2;
		Div = Num1 / Num2;
		Sub = Num1 - Num2;
		Add = Num1 + Num2;
		
		if ( counter >= 10 )
		{
			System.out.printf("you answered %d times baby-cuz\n", counter);
			if ( precen < .75 )
			{
				System.out.printf("Yo dawg u need to study more your score is %.2f...NEXT!!", precen );
			}
			else
			{
				System.out.printf("man your good, i'll keep an eye on u, your score is %.2f ...next", precen);
			}
		}
		else
		{
			
			System.out.printf("you answered %d times baby-cuz\n", counter);
			ChooseOp();
			
		System.out.printf("How much is %d ", Num1); 
		
		ChooseOp2();
		
		System.out.printf("%d\n", Num2);
		
	}
}
	
	public void Chooselevel()
	{
		Scanner input = new Scanner ( System.in );
		
		
		System.out.println("Yo Yo, chose your level dawg");
		System.out.println("the input must be in base 10, for example: if u chose level 10\n"
				+"your question is to find an answer of 2 TWO-DIGIT numbers\n"+
				"if your lvl is 100, u need to find an answer of 2 THREE-DIGIT numbers\n"
				+"u gots it dawg!!");
		
		
		level = input.nextInt();
				
				
	}
	
	
	
	
	private void ChooseOp()
	{
		
		System.out.println("Choose an operation dawg\n0 to divide\n1 to multiply\n" +
				"2 to subtract\n3 to add, c'mon lets play\nIncase of division round to the nearest decemal m8");
		Scanner input = new Scanner ( System.in );
		cho = input.nextInt();
	}
	
	private void ChooseOp2()
	{
		
		switch ( cho )
		{
		case 0:
			System.out.print("divided by ");
			break;
		case 1:
			System.out.print("times");
			break;
		case 2:
			System.out.print("subtracted by ");
			break;
		default:
			System.out.print("added to ");
		}
	}
	
	
	private void ifWrong()
	{
	
		Random rad = new Random();
		incasewrong( rad.nextInt(5) );
		
		
		int answer2;
		Scanner input = new Scanner( System.in );
		answer2 = input.nextInt();
		
		
		if ( cho == 0 )
		{
			if ( answer2 == Math.floor ( Div * 10 + 0.5 ) / 10)
			{
				System.out.println("whos a good boy, who is, who is");
				NumofCorrect++;
				counter++;
				ask();

			}
			else 
			{
				counter++;
				ifWrong();
			}
		}
		
		
		
		if ( cho == 1 )
		{
			if ( answer2 == Mul )
			{
				System.out.println("whos a good boy, who is, who is");
				NumofCorrect++;
				counter++;
				ask();

			}
			else 
			{
				counter++;
				ifWrong();
			}
		}
		
		
		if ( cho == 2 )
		{
			if ( answer2 == Sub )
			{
				System.out.println("whos a good boy, who is, who is");
				NumofCorrect++;
				counter++;
				ask();

			}
			else 
			{
				counter++;
				ifWrong();
			}
		}
		
		if ( cho == 3 )
		{
			if ( answer2 == Add )
			{
				System.out.println("whos a good boy, who is, who is");
				NumofCorrect++;
				counter++;
				ask();

			}
			else 
			{
				counter++;
				ifWrong();
			}
		}
		
	}
	
	
	
	
	public void ask()
	{
		GenerateQ();
		
		Random radd = new Random();
		
		int answer;
		Scanner input = new Scanner ( System.in );
		answer = input.nextInt();
		
		if ( cho == 0 )
		{
			if ( answer == Math.floor( 10 * Div + 0.5 )/10 )
			{
				incaseright( radd.nextInt(5));
				NumofCorrect++;
				counter++;
				ask();
			}
			else 
			{
				counter++;
				ifWrong();
			}
		}
		
		if ( cho == 1 )
		{
			if ( answer == Mul )
			{
				incaseright( radd.nextInt(5));
				NumofCorrect++;
				counter++;
				ask();
			}
			else 
			{
				counter++;
				ifWrong();
			}
		}
		
		
		if ( cho == 2 )
		{
			if ( answer == Sub )
			{
				incaseright( radd.nextInt(5));
				NumofCorrect++;
				counter++;
				ask();
			}
			else 
			{
				counter++;
				ifWrong();
			}
		}
		
		if ( cho == 3 )
		{
			if ( answer == Add )
			{
				incaseright( radd.nextInt(5));
				NumofCorrect++;
				counter++;
				ask();
			}
			else 
			{
				counter++;
				ifWrong();
			}
		}
		
	}
}

and here is the main method

public class QuizTest 
{
	public static void main( String args[])
	{
		 Quiz Try = new Quiz();
		 Try.Chooselevel();
		 Try.ask();
		 
		
	}

}

[A.N.H]

k i found out that it still need some tweaking, after a month or so after i learn how to program using arrays and other stuff i'll do some modifications and post it again in this website, just to c how much i'll improve in a month..