Examples for Trace2.txt
	
Construct the trace table and predict the output.
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// Example 1.
public class Main
{
    public static void main(String[] args)
    {
	int x = 5, y = 8;

	while(x + y < 100)
	{
	    x = 2 * x + y;
	    y *= 3;
	}
	System.out.println(x + " " + y +
	    " " + (x + y));
    }
}
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// Example 2.
// What is the output with the input 2?
// with input 4;

import javax.swing.JOptionPane;
public class Main
{
    public static void main(String[] args)
    {
	int x = 5, y = 3, n;

        n = Integer.parseInt(
            JOptionPane.showInputDialog("Enter an int."));
        while (x < 100 && y < 75)
	{
	   x *= (n + 1);
	   y *= (n - 1);
	   System.out.print(x + " ");
	}
    }
}

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// Example 3.
// What is the output with the input "abc"?

import javax.swing.JOptionPane;
public class Main
{
    public static void main(String[] args)
    {
        int n = 2;
        String a;

        a = JOptionPane.showInputDialog("Enter a string");
        while(a.length() <= 10)
        {
            a += (n + "#" + a.charAt(n - 1));
            n += 2;
        }
        System.out.println(a);
    }
}

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// Example 4.
public class Main
{
    public static void main(String[] args)
    {
	int x = 3, y = 5, z = 9;

	if ((x + y + z) % 3 == 1)
	    System.out.println("Yes");
	else
	    System.out.println("No");
    }
}

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// Example 5.
public class Main
{
    public static void main(String[] args)
    {
        int x = 100, y = 74;

        while(x > 1 && y > 1)
        {
            if ((x + y) % 2 == 0)
            {
                x /= 2;
                y /= 3;
            }
            else
            {
                x /= 3;
                y /= 5;
            }
            System.out.print(x - y + " ");
        }
    }
}

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// Example 6.
// What does this program do?
// Test with the inputs 
// racoon frog mouse dog wolf bear

import javax.swing.JOptionPane;
public class Main
{
    public static void main(String[] args)
    {
        String word;

        word = JOptionPane.showInputDialog"Enter a string");
        while(word != "")
        {
            if (word.length() == 4)
            {
                System.out.println(
                    "Output is ****.");
            }
            else
            {
               System.out.println(
                    "Output is " + word + ".");
            }
            word = JOptionPane.showInputDialog"Enter a string");
         }           
    }                    
}

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// Example 7.

public class Main
{
    public static void main(String[] args)
    {
        int x = 4, y = 17, i;

	for(i = x; i <= y + 2; i += 3)
	    System.out.print(i + " ");
	System.out.println();
	System.out.println(i);

    }
}

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// Example 8.

public class Main
{
    public static void main(String[] args)
    {
	 int i, j;

         j = 100;
         for(i = 73; i > 1; i /=3)
	     j /= 2;
         System.out.println(j);
    }
}

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// Example 9.
// What does the following code do?

import javax.swing.JOptionPane;
public class Main
{
    public static void main(String[] args)
    {
        String word, c;
	char letter;
	int i, n = 0;

        word = JOptionPane.showInputDialog("Enter a string");
        c = JOptionPane.showInputDialog("Enter a string");
	letter = c.charAt(0);
        for(i = 0; i <= word.length() - 1; i++)
	    if (word.charAt(i) == letter)
	        n++;

	System.out.println(n);
    }
}

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