Eclipse: A GUI-creating the project
GUI stands for Graphical User Interface and refers to the graphical interface of a program, such as Buttons, text fields and other elements. Click here to read how to start in Eclipse a suitable project:
- Open Eclipse (Version: Kepler Service Release 2), and click "File" and "New" and then "Java Project". Give your project a suitable name and click "Finish".
- You just have to open the Package Explorer of your new project. Now click in the top action bar, point to "Create new visual classes". You move the mouse over "Swing" and then click "JFrame". It opens a new window, here you enter the name of the class.
- Now you have created a "Visual Class" and can proceed with the processing of this Fort.
GUI project with Eclipse create
Java GUI: can change the Design
After you have created the "Visual Class", you can proceed with the Design of your program:
- To do this, click in the Editor of Eclipse on "Design".
- You will now see a classic window, which you can equip with individual elements. Under "Components" you will find, for example, the "JButton".
- Click on any item and drag it into the program window. Note: With "Absolute layout", you can rearrange the elements in the window.
- You give the elements unique names, such as, for example, "btn1" for the first Button. Caution: do not Confuse the name ("Variable") with the label ("Text").
Design with Eclipse change
Java programming: add interaction
We assume, you now have 2 text fields and a Button. In text field 1 ("txt1") enter a number to be multiplied by 2. In text box 2 ("txt2") the result is displayed.
- Double-click your Button (in this case "btn1"). You are now back in the Editor.
- With the method "getText()" you can read the input from the first text field. Since you need an Integer data type, convert the String data type is "Integer.parseInt" to.
- Now assign the Variable "a" to the read value, and then multiply by 2.
- Finally, we give the result (Variable "b") in the text box 2. To this end, we use the method "setText()".
Button to add an action
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Eclipse java gui programming, so s
