What does the following method do in a Java Swing application?panel.add(button);a.push(Component comp)b.insert(Component comp)c.add(Component comp)d.place(Component comp)
Question
What does the following method do in a Java Swing application?panel.add(button);a.push(Component comp)b.insert(Component comp)c.add(Component comp)d.place(Component comp)
Solution
The method panel.add(button); in a Java Swing application is used to add a component to a container. In this case, it's adding a button to a panel.
Here's a step-by-step breakdown:
-
panelis an instance of a container in the Swing library. A container is a component that can contain other Swing components. -
buttonis an instance of a Swing component that can be added to a container. In this case, it's a button, but it could be any Swing component like a label, text field, etc. -
.add()is a method provided by the Swing library for adding components to a container. -
So,
panel.add(button);is adding thebuttoncomponent to thepanelcontainer.
The options a, b, d are not valid methods for adding a component to a container in Java Swing. The correct option is c. add(Component comp).
Similar Questions
How can components be added to a container in Swing?*1 pointUsing setVisible() methodUsing set() methodUsing add() methodUsing setLayout() method
What is the primary purpose of a JFrame in Java Swing?a.To handle eventsb.To represent a text fieldc.To perform arithmetic operationsd.To provide a container for GUI components
Which method is used to create an additional component to a container in Java GUI?1 pointsetVisible()add()setEnabled()remove()
What does the following code do?Action openAction = new AbstractAction( "Open..." ) { public void actionPerformed( ActionEvent e ) { doOpen(); }};JButton openButton = new JButton( openAction ); JMenuItem openCommand = new JMenuItem( openAction );Question 2Select one or more:a.This code creates an Action that represents the opening of a file in the doOpen() instance method.b.This code creates a button from the Action.c.This code creates a menu item from the Action.d.This code reads a text file.
Which class in Java is commonly used for creating a graphical window in Swing?Question 26Answera.JFrameb.JPanelc.JButtond.JWindow
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.