Cal Master is a java game developed with Java Swing. In this game tutorial, source code provided for you. This game has 10 adding operation equations. Finally give the result with a result sheet and time you to solve all the questions.

What are the additional features you can include for this game? As an example you can implement a result sheet with colors also sound effects. Think as java programmers and implement additional features for this game.

CalMaster.java

//copyrighted by topsourcecode.com
import javax.swing.JOptionPane;
import java.util.Random;

public class CalMaster {
    public static void main(String []a)
    {
        final long startTime = System.currentTimeMillis();
        final long endTime;
        try {
            StartGame();
        } finally {
         endTime = System.currentTimeMillis();  
        }
        final long duration = (endTime - startTime)/1000;
        JOptionPane one = new JOptionPane();
        JOptionPane.showMessageDialog(one,"Time Taken: "+duration + " Seconds");   
    } 
    public static void StartGame(){
   
        JOptionPane one = new JOptionPane();
        JOptionPane.showMessageDialog(one,"Welcome to CalMaster Game...");
        int answerd = 0;
        String [] correctAnsArray = new String[10];
        String [] answerdArray = new String[10];
        String resultSheet = "";
      
        for (int i=0;i<10;i++)
        {
            Random randNumber1=new Random();
            int genRandNumber1=randNumber1.nextInt(100);
            Random randNumber2=new Random();
            int genRandNumber2=randNumber2.nextInt(100);
            int ans = genRandNumber1+genRandNumber2;
            correctAnsArray [i] = genRandNumber1 + " + " + genRandNumber2 + " = " + ans;
        
            try
            {
                String sAnswer=JOptionPane.showInputDialog(genRandNumber1 + "+" + genRandNumber2 + "= ?");
                answerdArray[i] = sAnswer;
                int answer=Integer.parseInt(sAnswer);
                if(answer == genRandNumber1 + genRandNumber2){
                    answerd++;          
                }
            }catch(Exception e){
            }
        }
      
        resultSheet = "Your Result Sheet\n";
        resultSheet = resultSheet + "Correct Answer " +" Your Answer\n\n";
        String sp = "     ";
        for (int i=0;i<10;i++)
        {
            if(correctAnsArray[i].length() == 9 )
            resultSheet = resultSheet + correctAnsArray[i]+sp+"           "+ answerdArray[i]+"\n";
            else if(correctAnsArray[i].length() == 11 )
            resultSheet = resultSheet + correctAnsArray[i]+sp+"         "+ answerdArray[i]+"\n";
            else if(correctAnsArray[i].length() == 12 )
            resultSheet = resultSheet + correctAnsArray[i]+sp+"       "+ answerdArray[i]+"\n";
            else if(correctAnsArray[i].length() == 13 )
            resultSheet = resultSheet + correctAnsArray[i]+sp+"     "+ answerdArray[i]+"\n";
        }
        resultSheet = resultSheet + "\nScore is " + answerd+"/10";
        JOptionPane.showMessageDialog(one,resultSheet);
    } 
}

Result

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