小编Jav*_*ner的帖子

我想在图例中显示行标签的文本,但也不是一行(如下图所示):

我试图最小化图例的线条和标签,并且也只覆盖新标签(如下面的代码所示).但是,这个传奇带来了两个回归.

    legend = ax.legend(loc=0, shadow=False) 
    for label in legend.get_lines(): 
        label.set_linewidth(0.0) 
    for label in legend.get_texts(): 
        label.set_fontsize(0) 

    ax.legend(loc=0, title='New Title')

当我绘制完整数据工作正常并在x轴上显示日期时:

.

当我放大特定部分来查看:

情节只显示时间而不是日期,我明白用较少的点不能显示不同的日期,但即使图形被缩放,如何显示日期或设置日期格式？

dataToPlot = pd.read_csv(fileName, names=['time','1','2','3','4','plotValue','6','7','8','9','10','11','12','13','14','15','16'], 
                             sep=',', index_col=0, parse_dates=True, dayfirst=True)
dataToPlot.drop(dataToPlot.index[0])
startTime = dataToPlot.head(1).index[0]
endTime = dataToPlot.tail(1).index[0]
ax = pd.rolling_mean(dataToPlot_plot[startTime:endTime][['plotValue']],mar).plot(linestyle='-', linewidth=3,  markersize=9, color='#FECB00')

提前致谢!

我朋友在Git存储库中的项目,下载了'Git-1.9.4-preview20140929.exe'并安装了GIT bash将项目拉到我的最后,我用它做了

$ git clone <with SSH clone URL>

我在我的本地系统中得到了这个项目,现在我做了一些改动,我想把更改推回到存储库,所以我做了

$ git init
Reinitialized existing Git repository in c:/users....

和

$ git add .
$ pom.xml
./pom.xml: line 1: project: No such file or directory
./pom.xml: line 2: syntax error near unexpected token `newline'
./pom.xml: line 2: `  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http
://maven.apache.org/maven-v4_0_0.xsd">'

和

 $ git commit -m 'First commit'
 On branch master
 Your branch is ahead of 'origin/master' by 2 commits.
   (use "git push" to publish your local commits)

 nothing to …

基本上我想在点击"生成PDF记录簿"按钮的过程中更改JLabel的标签文本

从前面的例子说:

label.setText("new value");

当我这样做时,标签值根本没有变化,请给我一些指示,谢谢

初始化();

JLabel lblNewLabel = new JLabel("513 k bytes");
    lblNewLabel.setBounds(407, 713, 151, 14);
    frmViperManufacturingRecord.getContentPane().add(lblNewLabel);

在" 生成PDF记录簿"按钮上单击

        JButton btnGeneratePdfHeader = new JButton("Generate PDF Record Book");
    btnGeneratePdfHeader.setMnemonic('G');
    btnGeneratePdfHeader.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent arg0) {

            final JLabel lblNewLabel = new JLabel("513 k bytes");

            //java.io.File file = new java.io.File(strdfile);
            //lblNewLabel.setSize(file.length());
            //System.out.println(file.length());

            String fileSize = file.length() + " k bytes";
            System.out.println("I am here");

            lblNewLabel.setText("new value");
        }
    });

我希望在应用程序前面显示警告showConfirmDialog窗口,即使GUI移动到不同的位置,如果我不移动应用程序并按"关闭ALT + X"按钮,但是如果我将应用程序移动到第二个屏幕,它可以正常工作警告showConfirmDialog窗口停留在旧位置,如何随GUI一起移动警告窗口,请给我指示,谢谢.

关闭ALT + X按钮

        //close window button
    JButton btnCloseWindow = new JButton("Close ALT+X");
    btnCloseWindow.setMnemonic('x');
    btnCloseWindow.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            JFrame frame = new JFrame();

            int result = JOptionPane.showConfirmDialog(frame, "Are you sure you want to close the application?", "Please Confirm",JOptionPane.YES_NO_OPTION);
            //find the position of GUI and set the value
            //dialog.setLocation(10, 20);
            if (result == JOptionPane.YES_OPTION)
                System.exit(0);
        }
    });

到目前为止,我试图将GUI的位置设置为showConfirmDialog,但是没有用.

我试图创建一个使用数组元素的段落将其写入pdf文件,如果我只添加一行例如paragraph.add("这是内容"); 工作正常;

当我尝试使用数组时,它会出错

请给我指示解决这个问题,谢谢.

代码:

public void readStuff(){

String[] arrayName = new String[7];

try{
    PdfReader reader = new PdfReader(new FileInputStream("My First PDF Doc.pdf"));

    arrayName[0] = "PDF version: " + reader.getPdfVersion();
    arrayName[1] = "Number of pages " + reader.getNumberOfPages();
    arrayName[2] = "File length: " + reader.getFileLength();
    arrayName[3] = "Is it encrypted: " + reader.isEncrypted();
    arrayName[4] = "Width of the page 1: " + reader.getPageSize(1).getWidth();
    arrayName[5] = "Height of the page 1: " + reader.getPageSize(1).getHeight();
    arrayName[6] = "Rotation of page 1: …

我设法到目前为止使用stackoverflow示例,JTree显示所有系统驱动器和文件夹,想要显示文件夹中的所有相应文件,得到循环中的所有文件名需要添加它们,这就是我卡住的地方!

请指教我添加文件夹下的文件,谢谢!

码:

public class viewGui extends JFrame {

    private FileSystemView fileSystemView;
    private Desktop desktop;
    private static final long serialVersionUID = 1083130296343096642L;
    public static JTree tree;
    private DefaultTreeModel treeModel;
    private JTable table;
    private ListSelectionListener listSelectionListener;

    private static final LayoutManager H = new GridLayout(1, 0);
    private static final LayoutManager V = new GridLayout(0, 1);

    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            @Override
            public void run() {
                try {
                    viewGui mainWindow = new viewGui();
                    mainWindow.setVisible(true);
                } catch (Exception …

有一个简单的JTable,从编辑后尝试获取最新的列值.

"将文件添加到表"按钮将把文件名和路径从JTextField加载到JTable中

"从表中获取值"按钮将(尝试)获取JTable中的所有列值.

编辑完最后一列后按"从表中获取值"按钮只返回前三列而不是编辑列,最后一列不返回任何内容!

如何获取编辑的列值？

码

import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextField;
import javax.swing.JButton;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;

import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.io.File;
import java.nio.file.Path;
import java.util.Vector;

public class viewTable {

    private JFrame frame;
    private JTextField textField;
    private JTable table;
    private static DefaultTableModel model;
    private static File file;

    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                try {
                    viewTable window = new viewTable();
                    window.frame.setVisible(true);
                } catch (Exception e) { …