Question

我编写了一个方法，查找TextPane中的所有单词（名为textContent），这些单词与TextField1（您搜索的单词）中给出的单词相同，并突出显示为黄色：

private void findAlleActionPerformed(java.awt.event.ActionEvent evt) {                                         
    int j = 0;
    int i = 0;
    int index = 0;
    String search = TextField1.getText();

    try{
        if(!TextField1.getText().isEmpty()){
            while(i != -1){
                    i = textContent.getText().indexOf(search, j);
                if(i == -1)
                    break;
                if(evt.getSource() == findAll || evt.getSource() == findAllButton){
                    textContent.select(i, i + search.length());   
                }
                Color c = Color.YELLOW;
                Style s = textContent.addStyle("TextBackground", null);
                StyleConstants.setBackground(s, c);
                StyledDocument d = textContent.getStyledDocument();
                d.setCharacterAttributes(textContent.getSelectionStart(), textContent.getSelectionEnd() - textContent.getSelectionStart(), textContent.getStyle("TextBackground"), false);
                j = i + search.length();
                index++;
            }
            if (index > 0){
                textContent.grabFocus();
                textContent.setCaretPosition(textContent.getText().indexOf(search, 0) );
                if(evt.getSource() == findAll || evt.getSource() == findAllButton){
                    status.setText("Term: " + TextField1.getText() + ". Number of apperances: " + index);
                } 
            } else {
                textContent.grabFocus();
                if(evt.getSource() == findAll || evt.getSource() == findAllButton){
                    status.setText("Term " + search + " was not found.");
                } 
            }
        }
    } catch (Exception e){
        status.setText("Error finding requested term.");
        System.err.print(e);
    }
}

现在我正在创建另一个方法changeAllActionperformed()，它将用TextField2中给出的单词替换所有突出显示的单词。我尝试用textContent.replaceSelection(TextField2.getText());做到这一点，但问题是它将新单词放在第一个高亮单词的前面，它甚至不删除它。我想要的是删除所有突出显示的单词，并用Textfield2中的新单词替换它们。我该怎么做？

Answer 1

任何理由都不能这么简单吗？

String replaced = textContent.getText().replace(search, TextField2.getText());
textContent.setText(replaced);

如何将jTextPane中所有突出显示的单词更改为jTextField中给出的单词？

1 个答案: