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Date: Thu, 30 Oct 1997 18:19:44 -0500
To: rappleto@nmu.edu
From: Meredith Kulisheck <mkulishe@nmu.edu>
Subject: Another test!
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CS 120, Test 2							NAME
10/31/97

True or False (4 pts each)

1. If an array arr has been declared to have 30 elements of type int, then
arr[ 12 ] is the twelfth element of this array.


2. If an array arr has been declared to have 30 elements of type int, and
the value stored in arr[ i]  is 12, then i is 12.


3. If an array arr has been declared to have 30 elements of type int, then
the following for loop would print the positions of all the positive
elements in the array..
	for ( int i = 0; i <= 30; ++i )
		if ( arr[ i ] > 0 )
			g.drawString( "" + i, 30, 30 +  i * 15 );


4. An array can store several types of values.


5. It is equally acceptable to refer to arr[ 3 ] and arr[ 3. ] (if arr is a
sufficiently large array).


For #6, #7, and #8, suppose that a method begins
	public int testMethod( int a, double b )
	{

6. If a and b are of type int and c is of type double, this method could be
called with

	a = testMethod( b, c );


7. testMethod ends with either

	return true;
or
	return false;


8. There might be more than one return statement in testMethod.

Give the output for the following program (30 pts):

import java.awt.*;
import java.applet.Applet;
public class Test2P3 extends BackgroundApplet
{
	int  arr [ ];

	public void init ()
	{
		arr = new int [ 10 ];
	}

	public void paint ( Graphics g )
	{
		arr[ 0 ] = 1;
		arr[ 1 ] = 1;
		for (  int i = 2; i < 10; ++i )
			arr[ i ] = arr[ i - 1 ] + arr[ i - 2 ];
		g.setColor( Color.black );
		for (  int k = 0; k < 10; ++k )
			g.drawString( "" + arr[ k ], 30, 30 + 15 * k )
	}
}




















Complete the following program as directed. (38 pts)

import java.awt.*;
import java.applet.Applet;
public class Test2P3 extends BackgroundApplet
{
// Declare count  and max to be of type int, and names  to be an array of
type String.




	public void init ()
	{
// Give count an initial value of 0 and max to have an initial value of
200.  (This is more than will be needed.)  Allocate memory for names to
have max elements. */






		requestFocus();
	}
	public boolean keyDown ( Event e, int key )
	{
/* Write the code so that stringDialog is called if the space bar is
pressed and if there are fewer than max names in the array.  The message
should tell the user to enter a name or xxx to quit. */







	return true;
	}
	public void paint ( Graphics g )
	{
		g.setColor( Color.red );
		g.drawString( "Press the Space Bar to enter a name.", 30, 15 );
		g.setColor( Color.black );
// Write a for loop to print all elements in the array.






	} // End of paint

	public boolean dialogResponse( boolean cancelled, String response )
	{
		if ( ! cancelled )
		{
			if ( response.equals( "xxx" ) )    // User typed xxx (to quit)
// Call the method reverse.




			else
// Put response in the count position of names and increment count.












	return true;
	}

	public void reverse( )
	{
/* Write this method to reverse the order of the names in the array. */












	}

}