Javaサンプル(メニューバー)

//Sample1c.java
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.FileOutputStream;
import java.io.PrintStream;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
public class Sample1c {
  private static final String window_title = "メニューバー";
  private static final int locateX = 50;
  private static final int locateY = 50;
  private static final int window_width = 320;
  private static final int window_height = 185;
  private static final int table_width = 300;
  private static final int table_height = 120;
  private static final int row_height = 20;
  private static final String tab = "\t";
  // データ
  Object[] colNames = { "名前", "材質", "サイズ", "色", "判定基準" };
  Object[][] rowData = { 
      { "A01", "布", "大", "白", "柔らかさ" },
      { "K01", "糸", "細", "赤", "強度" }, 
      { "U01", "紙", "中", "黄", "安価" },
      { "S01", "紐", "中", "黒", "上質" }, };
  JTable t = new JTable(this.rowData, this.colNames);
  // 主処理
  public static void main(final String args[]) {
    final Sample1c sample = new Sample1c();
  }
  // コンストラクタ
  public Sample1c() {
    // フレームを作成
    final JFrame f = new JFrame(Sample1c.window_title);
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    // メニューバー
    final JMenuBar mb = new JMenuBar();
    final JMenu mFile = new JMenu("ファイル");
    final JMenuItem iSaveAs = new JMenuItem("別名で保存 ...");
    final JMenuItem iExit = new JMenuItem("終了");
    mFile.add(iSaveAs);
    mFile.addSeparator();
    mFile.add(iExit);
    mb.add(mFile);
    f.getRootPane().setJMenuBar(mb);
    // テーブルを追加
    this.t.setRowHeight(Sample1c.row_height);
    this.t.setGridColor(Color.gray);
    final JScrollPane sp = new JScrollPane();
    sp.getViewport().setView(this.t);
    sp.setPreferredSize(new Dimension(Sample1c.table_width, Sample1c.table_height));
    final JPanel p = new JPanel();
    p.add(sp);
    f.getContentPane().add(p, BorderLayout.CENTER);
    // フレームを表示
    f.setBounds(Sample1c.locateX, Sample1c.locateY, Sample1c.window_width,
        Sample1c.window_height);
    f.setVisible(true);
    // 終了クリック時のアクションリスナ
    iExit.addActionListener(new ActionListener() {
      public void actionPerformed(final ActionEvent ae) {
        System.exit(0);
      }
    });
    // 別名で保存クリック時のアクションリスナ
    iSaveAs.addActionListener(new ActionListener() {
      public void actionPerformed(final ActionEvent ae) {
        final JFileChooser fc = new JFileChooser(System
            .getProperty("user.dir"));
        // ダイアログの表示
        final int fd = fc.showSaveDialog(f);
        try {
          if (fd == JFileChooser.APPROVE_OPTION) {
            final FileOutputStream fo = new FileOutputStream(fc
                .getSelectedFile());
            final PrintStream ps = new PrintStream(fo);
            ps.println(Sample1c.this.t.getValueAt(0, 0)
                + Sample1c.tab
                + Sample1c.this.t.getValueAt(0, 1)
                + Sample1c.tab
                + Sample1c.this.t.getValueAt(0, 2)
                + Sample1c.tab
                + Sample1c.this.t.getValueAt(0, 3)
                + Sample1c.tab
                + Sample1c.this.t.getValueAt(0, 4));
            ps.println(Sample1c.this.t.getValueAt(1, 0)
                + Sample1c.tab
                + Sample1c.this.t.getValueAt(1, 1)
                + Sample1c.tab
                + Sample1c.this.t.getValueAt(1, 2)
                + Sample1c.tab
                + Sample1c.this.t.getValueAt(1, 3)
                + Sample1c.tab
                + Sample1c.this.t.getValueAt(1, 4));
            ps.println(Sample1c.this.t.getValueAt(2, 0)
                + Sample1c.tab
                + Sample1c.this.t.getValueAt(2, 1)
                + Sample1c.tab
                + Sample1c.this.t.getValueAt(2, 2)
                + Sample1c.tab
                + Sample1c.this.t.getValueAt(2, 3)
                + Sample1c.tab
                + Sample1c.this.t.getValueAt(2, 4));
            ps.println(Sample1c.this.t.getValueAt(3, 0)
                + Sample1c.tab
                + Sample1c.this.t.getValueAt(3, 1)
                + Sample1c.tab
                + Sample1c.this.t.getValueAt(3, 2)
                + Sample1c.tab
                + Sample1c.this.t.getValueAt(3, 3)
                + Sample1c.tab
                + Sample1c.this.t.getValueAt(3, 4));
            ps.close();
            fo.close();
          }
        } catch (final Exception ex) {
        }
      }
    });
  }
}