Difference Between JPanel and JFrame

Difference Between JPanel and JFrame

Both JFrame and JPanel are classes used in Java. The latter is a programming language that is object-orientated as well as class-based It is a digital platform that is used for the development and creation of apps. Developed expressly for the Internet by Sun Microsystems in 1995, Java is a programming language. Its primary goal is to create applications that can operate on a wide range of computer platforms, including PCs, laptops, cellphones, and other mobile devices.

JPanel Vs. JFrame

There is a distinction between JPanel and JFrame in that JPanel refers to an area in which multiple forms of visuals like photos, words, or figures, together with controls like text fields, buttons, and other similar elements, may become visible. JFrame represents a standalone window with its own set of attributes.

In computing, a JPanel is a general-purpose container that is used to group together a collection of more complicated components or actions. Check-boxes, buttons, and text fields are all examples of controls that may be found in this area. It also contains images and text, which can be seen in the following space:

Alternatively, JFrame is the fundamental container that is utilized to store components like buttons, labels, and text fields. A JFrame, in contrast to a JPanel, includes a title bar as well as the rest of the content.

What exactly is JPanel?

It refers to a broad container that is used to build a set of components that are all working in sync with one another. Because it is such a simple component, it is seldom equipped with an interactive graphical user interface (GUI) (GUI). It may, however, incorporate a graphical user interface if it is set out on an opaque backdrop or has a display border.

The JPanel container class may be found in the javax.swing package, which stands for Java Swing. Swing is an extension of the Abstract Window Toolkit (AWT), which is the first version of the Java Application Programming Interface (JAPI) framework (API). The former improves the use of the latter by increasing its serviceability.

In the Java programming language, the JPanel class is a very basic and lightweight container that is a subclass of the java.swing.

JComponent is a Java component class. Furthermore, the JComponent class is a subclass of the container. As a result, some methods utilized by the JPanel are inherited from the superclasses that it inherits. Image observers, alignments, and accessibility are just a few of the approaches that fall within this category.

The JPanel is a container that may hold checkboxes, buttons, pictures, fields, labels, and simply plain text. It is primarily described as a space in which controls and visuals may be included into the design.

To make use of a JPanel, one must first build an instance of it, which is accomplished by using the function Object() { [native code] } JPanel (). A blank panel is created as a result of this invoking procedure. By default, it has a gloomy appearance, but the backdrop color may be altered by activating the relevant methods of the JPanel object. Customization options are available for the blank panel’s components.

Layout managers must be used in order to do this. There are several other Layout managers available, such as Border Layout, Grid Layout, and Flow Layout, amongst other things. These Layout managers let you to make changes to the locations, sizes, and alignment of the components that have been added to the JPanel by dragging and dropping them. The colors of the components may also be modified via the use of constructors such as setForeground(color obj), setColor(color obj), and setBackgroundColor(color obj), among others.

What exactly is JFrame?

It is the basic or foundation container that is utilized for the development of separate graphical user interface (GUI) applications. It looks and operates in the same way as a window, such as a notice window or a warning window, that would ordinarily show on a computer monitor.

It is a member of the swing toolkit, much like JPanel, except its parent class is Java.awt, rather than JPanel.

Frame. Thus, the Frame class extends the Frame class present in the Java Abstract Window Toolkit (AWT), which is the most recent iteration of the Java programming language. What distinguishes JFrame from Frame is that it gives the option of shutting or concealing the window via the use of the setDefaultCloseOperation(int) function, while Frame does not.

Constructions and methods are available for it, which may be used to insert components like text fields and buttons into it and customize its physical characteristics such as fonts, size, colors, and alignments, among other things. It also has a title bar and a title bar border. Each feature has its own syntax that may be used to customize it.

It is divided into two sub-divisions: the menu bar and the content pane. The contents of a JFrame are the components that make up the frame, and the majority of the contents are located in the content pane. Furthermore, in order to include material in the JFrame, it must first be placed in the content pane.

JFrame makes use of a windows listener method, which begins operating anytime a user performs an action on a window, such as activating, shutting, opening, minimizing, or maximizing it. It also makes use of a mouse listener, which allows the frame to respond to the activities of the user’s mouse.

Despite the fact that a JFrame may include several frames and JPanels, all of them are dependent on the mainframe for their continued existence. It is possible to develop a huge number of functions for the JFrame by combining not only the methods of Listeners, but also the methods of get, set, and add.

Difference Between JPanel and JFrame

  • JPanel and JFrame are both container classes in the Java programming language. The parent of the former, on the other hand, is javax.swing. JComponent is a Java component class. The former is a subclass of the java.awt.Frame class, but the latter is not.
  • In terms of weight, JFrame is a large and hefty component that is used as a top-level window. JPanel, on the other hand, is lightweight and is used to organize Graphical User Interface (GUI) components.
  • JFrame is a window that may be used to create standalone graphical user interface (GUI) programs. JPanel, on the other hand, is an area where one may gather together a collection of sophisticated components or procedures.
  • Because it is a window, JFrame includes a title bar. JPanel, on the other hand, does not have a title bar.
  • a JFrame may include several frames and JPanels inside the same container. JPanel, on the other hand, is unable to contain JFrames inside itself. It, on the other hand, has the ability to contain numerous activities inside itself.


For example, in Java (an object-oriented programming language), there are various kinds of classes that serve as a framework or design for the creation of objects or a specific data structure, while also retaining their instance variables and, as a result, maintaining their state and employing the behavioral patterns of the objects.

Of these classes, JPanel and JFrame represent two distinct types of classes that are utilised in the development of Graphical User Interface (GUI) applications. When an application is started, these classes are primarily concerned with the “view” it presents to the user, and even though they may seem like a window, they are easily distinguished from one another since a JPanel does not have a title bar, but a JFrame does.

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