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Thread: Math Game? not sure whats wrong?

  1. #1
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    Default Math Game? not sure whats wrong?

    When it gets to the end, its supposed to ask the user if they want to play again, 1 for yes and 2 for no, it plays again regardless of what you want to do?

    import javax.swing.JOptionPane;
    import java.util.Random;
     
    public class Lab6
    {
    	public static void main(String args[])
    	{
    		int probType, lvl;
    		int opAnd1 = 0, opAnd2 = 0, cAwnser, sAwnser;
    		int correctA;
    		boolean pAgain;
    		int tempBoo;
     
    		Random rndm = new Random();
     
    		do
    		{
     
     
    			String s1 = JOptionPane.showInputDialog("Enter problem type: ");
    			probType = Integer.parseInt(s1);
    			while (probType < 0 || probType > 5)
    			{
    			s1 = JOptionPane.showInputDialog("Invalid number, please try again: ");
    				probType = Integer.parseInt(s1);
    			}
     
     
    			s1 = JOptionPane.showInputDialog("Enter desired level: ");
    		              lvl = Integer.parseInt(s1);
    			while (lvl < 0 ||   lvl > 3)
    			         {
    			          s1 = JOptionPane.showInputDialog("Invalid number, please try again: ");
    			           lvl = Integer.parseInt(s1);
    			            }
     
     
    			correctA = 0;
     
     
    			for(int i = 1; i <= 10; i++)
    			{
     
    				switch (lvl)
    				{
    				case 1:
     
    				opAnd1 = rndm.nextInt(10);
    				opAnd2 = rndm.nextInt(10);
     
    				break;
     
     
    				case 2:
    				opAnd1 = rndm.nextInt(100);
    				opAnd2 = rndm.nextInt(100);
     
    				break;
    				}
     
    			switch (probType)
    				{
    				case 1:
     
    				cAwnser = opAnd1 + opAnd2;
    				JOptionPane.showMessageDialog(null,(opAnd1 + " + " + opAnd2));
    				s1 = JOptionPane.showInputDialog("What is your awnser: ");
    				sAwnser = Integer.parseInt(s1);
    				if (cAwnser == sAwnser)
    					{
    					JOptionPane.showMessageDialog(null,"Good Job!");
    					correctA++;
    					}
    				else
    					{
    					JOptionPane.showMessageDialog(null,"Better luck next time!");
    					}
    						break;
     
     
     
    			case 2:
     
    			cAwnser = opAnd1 - opAnd2;
    			JOptionPane.showMessageDialog(null,(opAnd1 + " - " + opAnd2));
    			s1 = JOptionPane.showInputDialog("What is your awnser: ");
    			sAwnser = Integer.parseInt(s1);
    			if (cAwnser == sAwnser)
    				{
    				JOptionPane.showMessageDialog(null,"Fantastic!");
    				correctA++;
    				}
    			else
    				{
    			              JOptionPane.showMessageDialog(null,"Nice Try!");
    				}
    					break;
     
     
    			case 3:
    				cAwnser = opAnd1 * opAnd2;
    				JOptionPane.showMessageDialog(null,(opAnd1 + " * " + opAnd2));
    				s1 = JOptionPane.showInputDialog("What is your awnser: ");
    				sAwnser = Integer.parseInt(s1);
    				if (cAwnser == sAwnser)
    					{
    					JOptionPane.showMessageDialog(null,"Terrific!");
    					correctA++;
    					}
    					else
    					{
    					JOptionPane.showMessageDialog(null,"So Close!");
    					}
    					break;
     
     
    			case 4:
    				cAwnser = opAnd1 / opAnd2;
    				JOptionPane.showMessageDialog(null,(opAnd1 + " / " + opAnd2));
    				s1 = JOptionPane.showInputDialog("What is your awnser: ");
    				sAwnser = Integer.parseInt(s1);
    				if (cAwnser == sAwnser)
    					{
    					JOptionPane.showMessageDialog(null,"Sensational!");
    					correctA++;
    					}
    				else
    					{
    					JOptionPane.showMessageDialog(null,"You can do better!");
    					}
    					break;
    				}
    			}
    	JOptionPane.showMessageDialog(null,("You got " + correctA + " awnsers!"));
     
     
    	s1 = JOptionPane.showInputDialog("Do you wish to play again: ");
    	tempBoo= Integer.parseInt(s1);
    	while (tempBoo < 0 || tempBoo > 3)
    		{
    		s1 = JOptionPane.showInputDialog("Invalid number, please use 1 or 2 and try again: ");
    		tempBoo = Integer.parseInt(s1);
    		}
    	switch (tempBoo)
    		{
    		case 1:
    	                     	pAgain = true;
    			break;
    		case 2:
    			pAgain = false;
    			break;
    				}
     
     
    		} while (pAgain = true);
     
     
     
    	JOptionPane.showMessageDialog(null,("Thank You For Playing"));
     
     
     
     
    	}
    }
    Last edited by melinko928; October 7th, 2011 at 08:59 AM.


  2. #2
    Crazy Cat Lady KevinWorkman's Avatar
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    Default Re: Math Game? not sure whats wrong?

    You want to use ==, not =, in your while statement. One checks for equality, the other assigns a value.

    Although, if you're working with a boolean, you can omit "== true" altogether.
    Useful links: How to Ask Questions the Smart Way | Use Code Tags | Java Tutorials
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  3. #3
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    Default Re: Math Game? not sure whats wrong?

    Quote Originally Posted by KevinWorkman View Post
    You want to use ==, not =, in your while statement. One checks for equality, the other assigns a value.

    Although, if you're working with a boolean, you can omit "== true" altogether.
    im not sure where you are refering to... none of my while loops have an equals statement or assignment operator, there all greater than or less than, i have assignment operators in my switch statement at the end, is this what you are talking about?

  4. #4
    Crazy Cat Lady KevinWorkman's Avatar
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    Default Re: Math Game? not sure whats wrong?

    do... while(). What is in that while statement?
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