What does setPreferredSize do in Java?

What does preferred size mean?

In industrial design, preferred numbers (also called preferred values or preferred series) are standard guidelines for choosing exact product dimensions within a given set of constraints. … They therefore help to minimize the number of different sizes that need to be manufactured or kept in stock.

What is preferred size of component in Java?

The preferred size of a component is the minimum component size that will allow the component to display normally. The minimum size of the component, enough to display its label is known as preferred size of the component. The FlowLayout manager gives the preferred size to a component.

What is the difference between setSize and setPreferredSize?

setSize() sets the size of the component and setPreferredSize sets the preferred size. The Layoutmanager will try to arrange that much space for your component.

What is setFocusable in Java?

setFocusable() is actually a method from the Component class in swing. public void setFocusable(boolean focusable) It lets the Component(in your case,JPanel which extends Component) to gain the power of getting focused.

What method is used to specify a container’s layout?

The setLayout() method is used to specify a container’s layout.

Which method returns the preferred size of component?

The getPreferredSize() method returns the Dimension (width and height) for the preferred size of the component.

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What is CardLayout in Java?

A CardLayout object is a layout manager for a container. It treats each component in the container as a card. Only one card is visible at a time, and the container acts as a stack of cards. … Object) method can be used to associate a string identifier with a given card for fast random access.

What is a JScrollPane?

A JScrollPane provides a scrollable view of a component. When screen real estate is limited, use a scroll pane to display a component that is large or one whose size can change dynamically. … The boldface line of code creates the JScrollPane , specifying the text area as the scroll pane’s client.

What is JTable in Java?

The JTable is used to display and edit regular two-dimensional tables of cells. See How to Use Tables in The Java Tutorial for task-oriented documentation and examples of using JTable .