Hedley rossy's Weblog

7.6

hedleyrossy — Fri, 09 May 2008 12:20:17 +0000

1. String input = num.getText()

int numb = int.parseInt(input)

math.sqrt(numb)

numm.setText(numb)

2.The method that will be run is the action event linked to the listener.

3.The responsibilities of a model are to intialize and manage data used by the program, the view displays a view of the model data and the controller is a listener class.

5.6-6.8

hedleyrossy — Wed, 30 Apr 2008 12:32:07 +0000

1. Use the getIconWidth() and getIconHeight() methods after that the window must resize to the desired sizes.

2. radius = r * double;

3. By using the java.awt.event.* class.

6.8 )

1. You want to instantiate the Timer class and use javax.swing then use the timer so the object moves in regular intervals

2. A change in position over time.

3. Flicker is when a moving object goes too fast in an interval, this can be fixed by increasing the number of intervals in which an object moves the same amount of distance to the desired spot.

4. The direction guides the object the way it is pointing and the velocity controls the speed at which it moves in this certain direction.

4.10

hedleyrossy — Mon, 28 Apr 2008 15:34:20 +0000

1) String inputStr = JOptionPane.showInputDialog(”Enter your name”, “ ”)

2) JOptionPane.showMessageDialog(null, “Hedley \n” + “30 third street”)

3) it has to convert the return of the dialog box to an int or a double.

4)the exact size of each panel is fit before it is displayed.

3.7

hedleyrossy — Wed, 23 Apr 2008 17:34:50 +0000

1. a. g.drawRect(45, 20, 100, 50)

b. g.drawLine(20,20,100,100)

c. g.drawOval(100,100,50,50)

d. g.drawLine(100,100,50,50)

g.drawLine(50,50,200,200)

g.drawLine(200,200,100,100)

2. The design of a program that displayes a blue rect and a red background is designed so that the entire background is red and that a rect is printed ontop. the rect is then made to print blue.

3. the three properties of text font are style. size and name.

2.7

hedleyrossy — Wed, 23 Apr 2008 17:20:25 +0000

1. white :255, 255,255

black:0,0,0

blue: 0,0,255

med gray:128,128,128

2. A frame is used for housing the elements of the gui. panels are empty containers that you can fill with objects. layout managers determine how everything is laid out.

3. north, east, south, west, and center

4. pane.setlayout(new GridLayout(2, 2));

12.1

hedleyrossy — Wed, 16 Apr 2008 14:23:40 +0000

1.) The stopping state.

2.) Recursive step and the stopping state.

3.) Requires more time and more memory.

4.) Simple and handles long tedious tasks easily.

5.) 32, 1048576, 1.15e18, 1.32e36, 1.32e36, 0

6.) It will go on forever.

9.4 – 9.7

hedleyrossy — Thu, 21 Feb 2008 16:16:09 +0000

9.4)

a. while i is less than the length of the array, increase i and find the absolute value of the element of the array corresponding to i.

b. while i is less than the length of the array, increase i. the string is the same value as the element a[i]

2. an initializer list is a list of numbers in between braces in a code.

4. it is better because it makes the code easily interchangeable with another. If it were needed for other numbers or another experiment the code ccan be changed slightly and not have to be redone completely.

9.5

1. The leftover spaces in the array will be registered as nothing and be left out.

2.) one would want to use an array that is not full In order to create an indefinitely long list that will be saved as a text file.

9.6)

1. Parallel arrays are arrays that are set up to correspond with one another. making it easy to associate any number of variables from any number of arrays.

2. Finding data on someone in a database.

3. String[] name = new String[50];

int[] age= new int[50];

int[] ss = new int[50];

9.7 )

1. two dimensional arrays are arrays that represent a ultitude of things. ex. a table of numbers.

2. a two dimensional array may be used as a table of numbers…or a chart.

3. int neg = 1;

while (neg<0){

for (int i = 0; i < table.length; i++){

for (int j = 0; j < table[i].length; j++){

neg +=table table[i][j];

}

4. the result is a multiplication table.

9.1 – 9.3

hedleyrossy — Tue, 19 Feb 2008 18:50:38 +0000

9.1.1 With an array, all of the variables can be processed as a group, instead of individually.

2 to access an item in an array, type

nameofarray[number_of_item]

3 Wages of the Week

5.23 = wages[0] – Monday

6.23 = wages[1] – Tuesday

6.83 = wages[2] – Wednesday

5.36 = wages[3] – Thursday

6.21 = wages[4] – Friday

9.2

1 a a[1] = 23

b a[a.length - 1] = 5-1 = 4

c a[2]-a[3] = 67-89 = -22

2 that number is out of bounds and will produce an error.

9.3

1 int x = 0

while (x < 5)

system.out.println(array[x])

x++

2 array goes from [0] to [5]

int x = 6

while (x > 0)

x–

system.out.print(array[x]

3 int index

index = 0

int i

i = -1

while (i <= 10){

i++

if xyz[i] < 0

index++

4 a. while i is less than the length of the array, increase i and find the absolute value of the element of the array corresponding to i.

b. while i is less than the length of the array, increase i. the string is the same value as the element a[i]

5 with length, you can easily find how many elements are in the array in total.

8 cont.

hedleyrossy — Thu, 24 Jan 2008 13:47:49 +0000

8.5)

1. Unordered, Numbered, and Definition. An Unordered List displays a bulleted list, a Definition List displays the list and their associated definitions, a Nested List has a numbered list within an unordered one.2.

Grandmother and Grandfather from my Moms side
1. Mom
Grandmother and Grandfather from my Dads side
1. Dad

8.6)

1. text of link2. An absolute path name is a name that gives the exact location of the file on the computer.3. A relative path name is a path name that gives the exact location of a target document.

4. TEXT

8.7)

1. An inline image is a graphical image that is displayed when a user opens a page. External images are not displayed until the user clicks a link.

4. Sample picture

8.8)

title of table
1st header	2nd header
data that is in first column and the first row	data that is in second column and first row
data in first column second row	data in second column second row

Title
Column 1	Column 2	Column 3
1	2	3
4	5	6
7	8	9

8.9)

2. Use JApplet and replace the class’s method to “init”

3. Applications can access files on the user’s machine, that do not have to be in the same directory, requires a special Java web browser, while an Applet can not.

4. You must find the image on the Web server, then you can load it up by using the JApplet method “getImage” and making the method the URL.

Chapter 8 cont.

hedleyrossy — Wed, 23 Jan 2008 14:28:41 +0000

8.3)

1. A line break is used to display many lines of writing in multiple lines to avoid word wrap.

2. Preformatted text is used when the author wants to display text as it was entered.

Heading 1

Heading 2

8.4)

1. The browser doesn’t interpret the tag.

2. Escape tags are used to interpret characters that are commonly misinterpreted. ex. “>”, “<”, and “&”.