import javax.swing.*;public class JFrame1{ public static void main(String[] args) {
JFrame aFrame = new JFrame("First frame"); aFrame.setSize(300, 125); aFrame.setVisible(true);
}}Explain the purpose of each statement in the main() method above and why they are necessary for creating a JFrame.
What will be an ideal response?
The first statement declares a JFrame named aFrame. After you instantiate aFrame, the second statement sets the JFrame size. If you do not set its size, you see only the title bar of the JFrame because the JFrame size is 0 0 by default. In the third statement, you set the JFrame visibility to true. If you do not use setVisible(true), you do not see the JFrame. The default state for a JFrame is invisible.
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