Question

我是java摇摆新手。其实我有以下情况：

Case1 : “the collection was guaranteed.i'm sure it is” 
Case2 :  the collection was guaranteed.i'm sure it is
Case2 :  the collection was guaranteed...i'm sure it is

这些情况我想用摇摆窗来反映。哪些会接受这些情况。

条件：

在case1中，因为文本被“”包围，所以它不应该做任何事情。

第二种情况，因为数据没有被“”包围，所以“。”应突出显示（如果“。”为单个）黄色。

在第三种情况下正弦“。”之前或之后是另一个“。”应该保持原样。

有人建议我这可以用波动来完成，请给我一个关于如何继续的想法。在这里，我想要一个表格，我们可以粘贴这个文本和一个名为“清洁”的按钮，一旦被击中，黄色突出显示应该出现在句号上。还请给我一些关于秋千的好参考。

我尝试的内容如下。这并没有完全完成，因为我不知道如何启动它以及如何继续

import java.awt.Color;
import java.util.Scanner;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JOptionPane;
import javax.swing.event.DocumentListener;
import javax.swing.text.BadLocationException;
import javax.swing.text.DefaultHighlighter;
import javax.swing.text.Highlighter;

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

/**

 * @author u0138039
 */
public class NewJPanel extends javax.swing.JPanel {

    /**
     * Creates new form NewJPanel
     */
    public NewJPanel() {
        initComponents();
        createGUI();

    }

    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
    private void initComponents() {

        jFrame1 = new javax.swing.JFrame();
        jScrollPane1 = new javax.swing.JScrollPane();
        jTextArea1 = new javax.swing.JTextArea();
        jButton1 = new javax.swing.JButton();
        jScrollPane2 = new javax.swing.JScrollPane();
        jTextArea2 = new javax.swing.JTextArea();

        javax.swing.GroupLayout jFrame1Layout = new javax.swing.GroupLayout(jFrame1.getContentPane());
        jFrame1.getContentPane().setLayout(jFrame1Layout);
        jFrame1Layout.setHorizontalGroup(
            jFrame1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 400, Short.MAX_VALUE)
        );
        jFrame1Layout.setVerticalGroup(
            jFrame1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 300, Short.MAX_VALUE)
        );

        jTextArea1.setColumns(20);
        jTextArea1.setRows(5);
        jScrollPane1.setViewportView(jTextArea1);

        jButton1.setText("Clean");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        jTextArea2.setColumns(20);
        jTextArea2.setRows(5);
        jScrollPane2.setViewportView(jTextArea2);

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
        this.setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jScrollPane1)
            .addGroup(layout.createSequentialGroup()
                .addGap(472, 472, 472)
                .addComponent(jButton1)
                .addContainerGap(579, Short.MAX_VALUE))
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jScrollPane2))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 367, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jButton1)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jScrollPane2, javax.swing.GroupLayout.DEFAULT_SIZE, 398, Short.MAX_VALUE)
                .addContainerGap())
        );
    }// </editor-fold>                        

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                         
        hilit = new DefaultHighlighter();
        jTextArea2=jTextArea1.getText();
 Scanner scan=new Scanner(jTextArea1.getText());
    System.out.println("enter some text \n");
    String line= scan.nextLine();
   if(line.contains("\""))
   {
       System.out.println("Notining to do");
       System.exit(0);
   }
    int dot1=  line.indexOf(".");
    int dot2=line.lastIndexOf(".");
    if(dot1==dot2)
    {
       jTextArea2.setText(line);
            try {
                hilit.addHighlight(dot1,dot1+1, painter);
            } catch (BadLocationException ex) {
                Logger.getLogger(NewJPanel.class.getName()).log(Level.SEVERE, null, ex);
            }
       jFrame1.setVisible(true);
    }
    if(dot1==dot1+dot2 || dot1==dot2-dot1)
    {
        JOptionPane.showMessageDialog(jFrame1,"2 dots");
    }
    }                                        


    // Variables declaration - do not modify                     
    private javax.swing.JButton jButton1;
    private javax.swing.JFrame jFrame1;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JScrollPane jScrollPane2;
    private javax.swing.JTextArea jTextArea1;
    private javax.swing.JTextArea jTextArea2;
    // End of variables declaration                   
    private Highlighter hilit=null;
    private  final Highlighter.HighlightPainter painter = new DefaultHighlighter.DefaultHighlightPainter(Color.yellow);

    private void createGUI() {
        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
    }

}

由于

Answer 1

没有太多的摇摆经验，最简单的方法是使用HTML。

使用JTextPane（或JEditorPane）。

textPane.setContentType("text/html");

如果按代码设置，请确保字符串以"<html>"开头：

textPane.setText("<html>“the collection was guaranteed.i'm sure it is”");

现在您可以使用HTML进行标记，着色等操作：

"~~~<span style='background-color:#ffff00'>.</span>~~~"

文档更改侦听器或键侦听器可能每次都重新添加标记。

Document doc = textPane.getDocument();
String plainText = doc.getText(0, doc.getLength());

对于逻辑正则表达式可以使用，i.a。所谓的前瞻。另外一章。

Answer 2

我做了一个简短的例子。

根据需要使用适当的LayoutManager
我检查了你的大多数情况，可能不是全部
我使用Highlighter突出显示'。'

enter image description here

    import java.awt.Color;
    import java.awt.event.ActionEvent;
    import java.awt.event.ActionListener;
    import java.util.Scanner;
    import java.util.logging.Level;
    import java.util.logging.Logger;
    import javax.swing.*;
    import javax.swing.SwingUtilities;
    import javax.swing.text.BadLocationException;
    import javax.swing.text.DefaultHighlighter;
    import javax.swing.text.Highlighter;




    /**
     *
     * @author rohan
     */
    public class TestPeriodHighlight {
        private JFrame frame;
        private JPanel panel;
        private JTextArea jTextArea;
        private JButton butt;
        private Highlighter hilit=null;
        private  final Highlighter.HighlightPainter painter = new DefaultHighlighter.DefaultHighlightPainter(Color.yellow);
    TestPeriodHighlight () throws BadLocationException
    {
    createGUI();
    process();
    }
    public void process() throws BadLocationException
    {
     hilit = new DefaultHighlighter();
     jTextArea.setHighlighter(hilit);
    Scanner scan=new Scanner(System.in);
        System.out.println("enter some text \n");
        String line= scan.nextLine();
       if(line.contains("\""))
       {
           System.out.println("Notining to do");
           System.exit(0);
       }
        int dot1=  line.indexOf(".");
        int dot2=line.lastIndexOf(".");
        if(dot1==dot2)
        {
           jTextArea.setText(line);
           hilit.addHighlight(dot1,dot1+1, painter);
           frame.setVisible(true);
        }



    }
    public void createGUI()
    {
    butt=new JButton("clear");
    frame=new JFrame();
    frame.setDefaultCloseOperation(frame.EXIT_ON_CLOSE);
    panel=new JPanel();
    jTextArea=new JTextArea(20,20);
    panel.add(jTextArea);
    panel.add(butt);
     butt.addActionListener(new ActionListener() {

                public void actionPerformed(ActionEvent ae) 

                {
                jTextArea.setText("");
                }


              });
    frame.add(panel);
    frame.pack();
    frame.setVisible(false);



    }

    public static void main(String[] args)
    {
    SwingUtilities.invokeLater(new Runnable() {

                public void run() {
                  try
                  {
                        new TestPeriodHighlight();
                    } catch (BadLocationException ex) {
                        Logger.getLogger(TestPeriodHighlight.class.getName()).log(Level.SEVERE, null, ex);
                 }

                }
                }
                );

        }

    }

在java swings中需要帮助，创建一个简单的表单

2 个答案: