设置列表框指定行的文字颜色

 

list.setCellRenderer(new MyRenderer(new int[] {2,3}, Color.RED));   //设置列表框的第2行和第3行文字颜色为红色

class MyRenderer extends DefaultListCellRenderer {  
      
    private Font font1;  
    private Font font2;  
    private Color rowcolor;  
    private int row;  
    private int[] rows;  
 
    public MyRenderer() {  
        this.font1 = getFont();  
        this.font2 = font1.deriveFont((float) (font1.getSize() + 10));  
    }  
 
    public MyRenderer(int row, Color color) {  
        this.rowcolor = color;  
        this.row = row;  
    }  
 
    public MyRenderer(int[] rows, Color color) {  
        this.rowcolor = color;  
        this.rows = rows;  
    }  
 
    public Component getListCellRendererComponent(JList list, Object value,  
            int index, boolean isSelected, boolean cellHasFocus) {  
        super.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus);  
        if (rows==null) {  
            if (index == row) {  
                setForeground(this.rowcolor);  
                setFont(getFont().deriveFont((float) (getFont().getSize() + 2)));  
            }  
        } else {  
            for (int i = 0; i < rows.length; i++) {  
                if (index == rows[i]) {  
                    setForeground(this.rowcolor);  
                    setFont(getFont().deriveFont((float) (getFont().getSize() + 2)));  
                }  
            }  
        }  
 
        return this;  
    }  
}