Web我最近開始使用Java,現在陷入了一個簡單的項目。 我想畫一條線並且行得通,但是當我畫另一條線時,第一條線消失了。 我不知道如何得到它,所以我可以繼續畫線。 這是我的代碼: adsbygoogle window.adsbygoogle .push 其中一些代碼是基本教程的一部分,但是其余的 … Web我有下面的測試代碼。 在關閉對話框后打開對話框后,將調用windowClosed方法,但是當我關閉JFrame並關閉對話框時又再次調用它,為什么 在這種情況下,我不會關閉對話框 …
Java_Swingでウィンドウを閉じる方法について - JPDEBUG.COM
WebOther methods you might want to call are defined by the java.awt.Frame, java.awt.Window, and java.awt.Component classes, from which JFrame descends. Because each JFrame object has a root pane, frames have support for interposing input and painting behavior in front of the frame children, placing children on different "layers", and for Swing menu bars. Web25 lug 2012 · I don't want to use CardLayout, because I want different panels and with CardLayouts I just can have the same button for both. My code is: package javaapplication2; import javax.swing.JPanel; public class NewJFrame extends javax.swing.JFrame { /** * Creates new form NewJFrame */JPanel panel1 = new JPanel (); JPanel panel2 = new … everyday rewards bunch
java - How to disable main JFrame when open new JFrame - Stack …
Web20 ott 2008 · Remember, Java use 'copy reference by value' argument passing. So changing a variable wont change copies of the reference passed to other methods. Also note JFrame is very confusing in the name of usability. Adding a component or setting a layout (usually) performs the operation on the content pane. Web14 apr 2024 · Java는 Swing을 이용하여 GUI 개발을 할 수 있다. 본 포스팅은 한글 패치가 완료된 이클립스를 기준으로 기술하고 있으므로 이클립스 설치 및 한글 패치가 되지 … Web18 dic 2013 · When I close F2 only F2 should be closed as it is a sub-frame and when I close F1 both F1 and F2 should be closed as F1 is the Main Frame. package swingex; … everyday rewards app not working