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du musst die "Karten" natürlich der Komponente adden, die auch das CardLayout hat.

So sollte es funktionieren...:

[code=Java]public final void initComponents() {

cardPanel = new JPanel(new CardLayout());
startscreen1 = new startscreen();
nextPanel1 = new nextPanel();
cardPanel.add(startscreen1, "startscreen");
cardPanel.add(nextPanel1, "nextPanel");
add(cardPanel, BorderLayout.CENTER);
startscreen.jButton2.addActionListener(this);
pack();
}

@Override
public void actionPerformed(ActionEvent evt) {
Object source = evt.getSource();
cl = (CardLayout) cardPanel.getLayout();

if (source == startscreen.jButton2) {
System.out.println("OK");
cl.show(cardPanel, "nextPanel");
}
}[/code]

<blockquote data-quote="jgh" data-source="post: 848403" data-attributes="member: 23360">du musst die &quot;Karten&quot; natürlich der Komponente adden, die auch das CardLayout hat.So sollte es funktionieren...:[code=Java]public final void initComponents() {&nbsp; &nbsp; &nbsp; &nbsp; cardPanel = new JPanel(new CardLayout());&nbsp; &nbsp; &nbsp; &nbsp; startscreen1 = new startscreen();&nbsp; &nbsp; &nbsp; &nbsp; nextPanel1 = new nextPanel();&nbsp; &nbsp; &nbsp; &nbsp; cardPanel.add(startscreen1, &quot;startscreen&quot;);&nbsp; &nbsp; &nbsp; &nbsp; cardPanel.add(nextPanel1, &quot;nextPanel&quot;);&nbsp; &nbsp; &nbsp; &nbsp; add(cardPanel, BorderLayout.CENTER);&nbsp; &nbsp; &nbsp; &nbsp; startscreen.jButton2.addActionListener(this);&nbsp; &nbsp; &nbsp; &nbsp; pack();&nbsp; &nbsp; }&nbsp; &nbsp; @Override&nbsp; &nbsp; public void actionPerformed(ActionEvent evt) {&nbsp; &nbsp; &nbsp; &nbsp; Object source = evt.getSource();&nbsp; &nbsp; &nbsp; &nbsp; cl = (CardLayout) cardPanel.getLayout();&nbsp; &nbsp; &nbsp; &nbsp; if (source == startscreen.jButton2) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; System.out.println(&quot;OK&quot;);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; cl.show(cardPanel, &quot;nextPanel&quot;);&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; }[/code]</blockquote>

[QUOTE="jgh, post: 848403, member: 23360"] du musst die "Karten" natürlich der Komponente adden, die auch das CardLayout hat. So sollte es funktionieren...: [code=Java]public final void initComponents() { cardPanel = new JPanel(new CardLayout()); startscreen1 = new startscreen(); nextPanel1 = new nextPanel(); cardPanel.add(startscreen1, "startscreen"); cardPanel.add(nextPanel1, "nextPanel"); add(cardPanel, BorderLayout.CENTER); startscreen.jButton2.addActionListener(this); pack(); } @Override public void actionPerformed(ActionEvent evt) { Object source = evt.getSource(); cl = (CardLayout) cardPanel.getLayout(); if (source == startscreen.jButton2) { System.out.println("OK"); cl.show(cardPanel, "nextPanel"); } }[/code] [/QUOTE]

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