質問編集履歴
2
やってみたことの追加
test
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test
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@@ -1 +1,149 @@
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ボタンが2個，チェックボックスが3個で作りたいのですがわかりません。
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```java
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import java.awt.Container;
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import java.awt.FlowLayout;
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import java.awt.event.ItemEvent;
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import java.awt.event.ItemListener;
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import java.awt.event.WindowAdapter;
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import java.awt.event.WindowEvent;
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import javax.swing.JCheckBox;
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import javax.swing.JFrame;
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class MyApplication {
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JFrame f;
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JCheckBox jcb1, jcb2;
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class MyItemListener implements ItemListener {
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public void itemStateChanged( ItemEvent e ) {
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String msg = "";
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if( e.getItemSelectable() == jcb1 ) {
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if( jcb1.isSelected() ) {
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msg = "選択肢1が選択された";
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}
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else {
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msg = "選択肢1の選択が解除された";
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}
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}
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if( e.getItemSelectable() == jcb2 ) {
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if( jcb2.isSelected() ) {
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msg = "選択肢2が選択された";
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}
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else {
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msg = "選択肢2の選択が解除された";
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}
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}
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System.out.println( msg );
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}
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}
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public MyApplication( String str ) {
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f = new JFrame( str );
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f.setSize(350, 80);
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Container c = f.getContentPane( );
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c.setLayout( new FlowLayout( ) );
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jcb1 = new JCheckBox( "選択肢1" );
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c.add( jcb1 );
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jcb1.addItemListener( new MyItemListener( ) );
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jcb2 = new JCheckBox( "選択肢2" );
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c.add( jcb2 );
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jcb2.addItemListener( new MyItemListener( ) );
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// ウィンドウを閉じたときにプログラムも終了するように設定する。
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f.addWindowListener(
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new WindowAdapter( ) {
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public void windowClosing( WindowEvent e ) {
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System.exit( 0 );
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}
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}
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);
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f.setVisible( true );
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}
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}
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class SwingCheckBoxTest {
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public static void main( String args[ ] ) {
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MyApplication app = new MyApplication( "チェックボックスの使用例" );
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}
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}
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149
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```
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1
初心者アイコンの付け忘れを直しました
test
CHANGED
|
File without changes
|
test
CHANGED
|
File without changes
|