如何突出兩個文本文件中的匹配詞？

Question

我有兩個文本文件，我試圖比較，即查找匹配的單詞並突出顯示匹配的單詞。下面的代碼利用兩個文件，找到匹配詞和打印出來：

public class Test { 

static MyHighlightPainter myHighlightPainter = new MyHighlightPainter(Color.red); 

public static void main(String[] args) throws Exception { 
    //BufferedReader db = new BufferedReader(new FileReader("src/project/test1.txt")); 

      JFrame frame = new JFrame(); 
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 

      JEditorPane pane = new JEditorPane(); 

       File file = new File("src/project/test1.txt"); 
       Scanner fileScan = new Scanner(file); 

       File file1 = new File("src/project/test.txt"); 
      Scanner file1Scan = new Scanner(file1); 

      Set<String> db = new HashSet<>(); 
      Highlighter highlighter = pane.getHighlighter(); 


      while(fileScan.hasNextLine()){ 
       db.add(fileScan.nextLine());} 
       while(file1Scan.hasNextLine()){ 
        String mtch = file1Scan.nextLine(); 
        if(db.contains(mtch)){       
         pane.setPage(file.toURI().toURL()); 
         pane.setText(pane.getText() +"\n "); 
         System.out.println(mtch); 
         frame.add(pane); 
         frame.pack(); 
         frame.setVisible(true); 
         highlight(pane,mtch); 

        } 


     // 

     } 


}; 

例如，「的test.txt」包含：Hello, my name is John and I live in a box.和「test1.txt的」包含：John does not live in France.

此打印出（system.in.println）John,in和live。 pane.setPage(file.toURI().toURL());在「test.txt」中打印出一個窗口中的所有內容，這是兩個不同的輸出。

我想要實現的是突出顯示匹配的單詞admmant原始文本。因此，Hello, my name is John and I live in a box.將突出顯示John, in and live。

我使用的一大亮點採用高亮方法我發現在網絡上測試：

public static void highlight(JTextComponent textComp, String pattern) { 
     // First remove all old highlights 
     removeHighlights(textComp); 

    try { 
     Highlighter hilite = textComp.getHighlighter(); 
     Document doc = textComp.getDocument(); 
     String text = doc.getText(0, doc.getLength()); 
     int pos = 0; 

     // Search for pattern 
     while ((pos = text.indexOf(pattern, pos)) >= 0) { 
      // Create highlighter using private painter and apply around pattern 
      hilite.addHighlight(pos, pos + pattern.length(), myHighlightPainter); 
      pos += pattern.length(); 
     } 
    } catch (BadLocationException e) { 
    } 
} 

// Removes only our private highlights 
public static void removeHighlights(JTextComponent textComp) { 
    Highlighter hilite = textComp.getHighlighter(); 
    Highlighter.Highlight[] hilites = hilite.getHighlights(); 

    for (int i = 0; i < hilites.length; i++) { 
     if (hilites[i].getPainter() instanceof MyHighlightPainter) { 
      hilite.removeHighlight(hilites[i]); 
     } 
    } 
} 
} 

class MyHighlightPainter extends DefaultHighlighter.DefaultHighlightPainter { 

public MyHighlightPainter(Color color) { 
    super(color); 
} 

我試過highlight(pane,mtch)，並且打印出的文本文件的內容。

Answer 1

你叫高亮（窗格，mtch）; 所以它被稱爲每個單詞。

亮點（）移除所有以前的由呼叫

// First remove all old highlights 
removeHighlights(textComp); 

因此只有最後一個字突出