0324

import javax.swing.JOptionPane;
public class Loops
{
    public static void main (String [] args)
    {
    	int math, total=0, times=0, n=0;
    	int average, pass=0, fail=0, check;
    	int mType=JOptionPane.INFORMATION_MESSAGE;
		int result=1;
		do
    	{
    		String mathString = JOptionPane.showInputDialog("請輸入數學成績\n");
    		math= Integer.parseInt(mathString);
    		if(math<0 | math>100)
    			 {
    				JOptionPane.showConfirmDialog(null,"請重新輸入數字，介於0~100之間",mathString, JOptionPane.YES_NO_OPTION,mType, null);
    				continue;
    			 }
    		else
    		{
    			n++;
    			JOptionPane.showConfirmDialog(null,"第"+n+"位學生數學成績為:"+math+"分\n");
    		}
    		times++;
    		total+=math;
    		check=math/10;
        	average=total/times;
        	switch(check)
        	{
        		case 10:
        		case 9:
        		case 8:
        		case 7:
        		case 6:
        			pass++;
        			break;
        		default:
        			fail++;
        			break;
        	}
        	result=JOptionPane.showConfirmDialog(null, "繼續輸入成績嗎?",mathString, JOptionPane.YES_NO_OPTION, JOptionPane.WARNING_MESSAGE);
        	if (result==JOptionPane.NO_OPTION)
        	{
        		JOptionPane.showConfirmDialog(null,"總人數:"+times+"\n總平均值為"+average+"\n總及格人數:"+pass+"\n總不及格人數:"+fail);
        		System.exit(0);
        	}

    	}while(true);

    }

}