![]() To use the component, we first create an instance of JFileChooser and then attach it to a button. JFileChooser is a powerful class that renders a file selection utility, allowing users to select files from their local system. Related Blog: File Handling in Java with examples JComboBox cities = new JComboBox(stylist) For instance, in the code snippet below, Sydney is the default selected option. To set a particular option as the default selection, we can use the setSelectedIndex method. For example, a String array containing cities can be sent to the JComboBox class, creating a dropdown menu containing each city from the array. It is a powerful class for rendering a dropdown of the list of options the user can access. The selection behavior can also be defined as single or multiple selections per the requirement. An example code above enables users to select from a list of five cities – Mumbai, London, New York, Sydney, and Tokyo. The component brings a scrollable list of elements to the UI. ![]() The code snippet above allows users to decide between Easy, Medium, or Hard. The constructor for this class allows for a boolean parameter that determines whether or not it will be defaulted to on state – true, meaning it is already switched on when invoked.Ĭreating a button group and selecting one option from the available choices is simple. When selected, a small tick appears in the box, indicating it has been switched on. This class renders a checkbox with an accompanying label, providing two states – on/off. Suggested Blog: Top 10 Real-World Applications of Java To access the value input by the user, one can use the getPassword() method, which returns a password field of 15 columns in width. It renders a text box in which the entered text is masked with bullet points, providing a secure layer of privacy. It is a powerful subclass of JTextField that allows users to securely and confidently insert passwords into the application. JTextArea txtArea = new JTextArea(“This text is default text for text area.”, This, too, takes two integer parameters specifying its height and width in columns and has no restriction on the number of characters that can be typed in it. You get an elegant text box that stretches 20 columns wide.įor more versatility, the JTextArea class gives users a multi-line text box to work with. Call the constructor to initialize the text field and specify the box width in columns. The class renders an editable single-line text box, giving users a platform to easily input non-formatted text. For example, calling a new JLabel(“This is a text label.”) will return a label with This is a text label written on it and invoking.Īlso Visit: data science course in kolkata The JLabel class is just what you need to render read-only text labels or images! This class has no event-generating capabilities but can still be used effectively. Lastly, the new JButton(hometown, “Home”) will return a button featuring both the home icon and the word Home. For instance, calling the constructor a new JButton(“Ok”) will return a button with Ok written on it, while a new JButton(homeIcon) will return a button with the home icon displayed. Constructors can be called to implement this button in any application with ease. With its ability to contain text or an image, it packs a powerful punch when generating events with clicks and double clicks. The class is the perfect choice for creating a visually stimulating push-button on the user interface. Have a look at data analyst course in delhi This provides a quick and easy way to access an already existing image and convert it into a size suitable for use as an icon. Will return an icon of a home button, where the string parameter is the path at which the source image is stored. You can utilize them in your application and modify them to fit the architecture of your application. Keep in mind that the examples are just short bits of code. This post will look at various Swing Components and provide some examples. In a nutshell, Swing components in java make a java application interactive. Examples are a button, checkbox, radio button, text field, etc. Every application has a fundamental interactive user interface. We know that Swing is a GUI widget toolkit for java. The fundamental building parts of an application are called swing components. JFileChooser in swing components in java.JRadioButton in swing components in java.JCheckBoxes in swing components in java.JPasswordField in swing components in java.ImageIcon homeIcon in swing components in java.
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