Deciding Layouts
Deciding the layout is a very important step in Java GUI programming, just like solving an algorithm in normal programming. Layout decides how the components like labels, buttons, text fields etc are going to be displayed on a frame or window.
Some GUI can be designed using single panel with a single simple layout. Some GUI need to be broken down into smaller panels which have to be added to an outer panel. Each smaller panel can have its own layout.
The simplest layout is the flow layout. Flow layout produces output as a single row. So go for flow layout if you have only 3 or lesser components or if you want all the components in a single row.
Next is grid layout. As long as you can determine the rows and columns, you can use this layout. It is possible to use grid layout for most of the applications which you want to develop with a single panel. You can always use filler labels to occupy the empty spaces. So grid layout works fine in such cases.
But if you want to have a very neat GUI with very good layout, you need to go for more than 1 panel. In that case, grid, flow, and border are all used together.
The development of a GUI depends on the type of problem. There are 2 types of GUI problems:
1. Problems which just specify that you need to do certain things. In this case, the layout of GUI is totally in your hands.
2. Problems where you are given a rough drawing on how GUI needs to look.
Type 1:
In case 1, you need to start with a paper and pencil.
- Read the problem and identify what needs to be displayed to the user
- Depending on that, draw a simple diagram on how you want your GUI to look
- Then start deciding on the layout
For example, consider the problem below:
Write a GUI java program that takes 2 numbers from the user, adds them, and displays the sum.
Solution:
1. For this, you need 2 text fields to read 2 inputs. 2 labels to tell what to enter in the text fields.
2. 1 button to initiate calculation.
3. 1 text field to display result, and 1 label to address the text field.
4. The rough diagram will be
5. For the above diagram, if you are going to use a single panel, then grid layout is the best choice. To decide the layout, dissect the diagram as shown below.
The elements of this design include primary and secondary colors, implied horizontal and vertical line in each rectangle. In this design divided this poster into four parts that considered rectangle. From these four rectangles artist used one rectangle for typography and other three used for design. According to designers, the triangles in each rectangle created "MMX" shape. In the top-right rectangle, there is four triangles and each has different colors and each triangles in symmetrical than others. Among all these four triangles, three of them are in yellow, blue, and green color. In the next top left recta...
Let us now examine a number of perspectives that should be considered when designing software solutions. In most cases, these perspectives will have direct consequences to the design of the user interface.
If the buttons are in a column, button 1 is the top one. Button 2 is the second one from the top, and so on.
List how you are going to implement each solution. How are you going to make your solution work?
The computer industry’s dependency on new programs and innovative software has led to the protection of intellectual property becoming a topic of fierce debate in the field. In the late 1980’s and early 1990’s, this issue spurred numerous lawsuits, thereby forcing the courts to set precedent and guidelines about how to prove copyright infringement of software. Many of these cases were in regards to copyright infringement of graphic user interfaces, or GUIs; which consist of the visual cues and representations seen through a particular program or software. GUIs, in essence, determine the “look and feel” of a program. The dilemma that the computer industry faced was how similar one interface has to be to another to constitute copyright infringement. The response to this dilemma would also serve as the response to other issues faced by the industry at the time: Should computers, similarly to automobiles, have a standard “dashboard” (a.k.a. GUI) to enable computers to be more efficiently used (Markoff)? What is the balance between the sharing of information that promotes innovation and the protection of intellectual property?
Text Box: Table 2. Humerus length and height of female student in the classText Box: Table 1. Humerus length and height of male student in the class
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Every single program will be able to create a virtual diagram and outline of the concept being implemented on the printer. Then the program divides the concept into digital ...
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Google Inc. (NASDAQ: GOOG, NASDAQ: GOOGL), is an international information technology pioneer that specializes in what way individuals access and interrelate with information over a wide variety of platforms. Google has changed a lot since it first started. In 1996 Google's creators, Larry Page and Sergey Brin made BackRub, the first version of Google. It was online for a year before they renamed it Google. The company continued to change after that by releasing Google Toolbar and Google AdWords in 2000, and in 2001 Google Groups. In 2001 the image search was released, and in 2002 Google News. In 2003 Google bought Pyra, the creators of Blogger, and released Google Book Search. Then, in 2005 Google Maps, Google Earth, Gmail and Google Talk were released. In 2006 Google acquired YouTube and SketchUp, and released Picasa, Google Docs, Google Financial, Google Calendar, and Google Trends. In 2007 the sky was featured in Google Earth, and Street View was introduced for a few cities in the U .S. Google Chrome was released in 2008 and 10 more languages were added to Google Translate, making the total of supported languages 23. The ocean began being shown in Google Earth in 2009, and the Nexus One smartphone was also released. Today, Google has many more projects than those listed and seems to want to expand into almost anything it can get its hands into.
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