e998. moving the caret of a jtextcomponent.txt

来自「这里面包含了一百多个JAVA源文件」· 文本 代码 · 共 20 行

JTextComponent c = new JTextArea();
    
    // Get position of the caret
    c.getCaretPosition();
    
    // Get the character following the caret
    if (c.getCaretPosition() < c.getDocument().getLength()) {
        try {
            char ch = c.getText(c.getCaretPosition(), 1).charAt(0);
        } catch (BadLocationException e) {
        }
    }
    
    // Move the caret
    int newPosition = 0;
    c.moveCaretPosition(newPosition);
    
    // Set the caret color
    c.setCaretColor(Color.red);