code 41.txt

package testscorestatistics;

import javax.swing.JOptionPane; 

public class TestScoreStatistics{

	static int intHigh, intLow; 

	public static void main (String[] args){
		
		int intScore; 
		
		int intSum;
		int intCount; 
		double dblAverage; 


		String strScore; 

		intSum = 0;
		intCount = 0;  
		intHigh = -1; 
		intLow = 200; 

		strScore = JOptionPane.showInputDialog(null, "Enter score (999 to exit)");
		intScore = Integer.parseInt(strScore);

		while (intScore != 999){
			if ((intScore < 0) || (intScore > 100)){
				JOptionPane.showMessageDialog(null, "Invalid score entered");
			}
			else{
				// average stuff
				
				intSum = intSum + intScore; 
				intCount = intCount + 1; 

				// high 
				intHigh = High(intScore);

				// low 
				
				intLow = Low(intScore);
			}
			
			strScore = JOptionPane.showInputDialog(null, "Enter score (999 to exit)");
			intScore = Integer.parseInt(strScore);
		}
		dblAverage = intSum / intCount; 
		
		JOptionPane.showMessageDialog(null, "The average score of " + intCount + " students is " + dblAverage + "\n" + 
						    "The highest score is " + intHigh + "\n" + 
						    "The lowest score is " + intLow );
	}

	public static int High(int intNumber){
		if (intNumber > intHigh)
			return intNumber;
		else 
			return intHigh;  			
	}

	public static int Low(int intNumber){
		if (intNumber < intLow)
			return intNumber;
		else 
			return intLow;  			
	}

}