質問編集履歴
2
コードの修正
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@@ -12,11 +12,10 @@
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import java.awt.ActiveEvent;
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import java.awt.BorderLayout;
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import java.awt.event.ActionListener;
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import javax.swing.JButton;
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import javax.swing.JFrame;
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import javax.swing.event.AncestorEvent;
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import javax.swing.event.AncestorListener;
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public class SampleApp extends JFrame{
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コード修正
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@@ -30,7 +30,7 @@
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JButton b1 = new JButton("Click");
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b1.
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b1.addActionListener(new MyJButtonActionAdapter());
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this.add(b1,BorderLayout.CENTER);
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@@ -45,7 +45,7 @@
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}
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}
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class MyJButtonActionAdapter implements
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class MyJButtonActionAdapter implements ActionListener{
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public void actionPerformed(ActiveEvent ev) {
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