リストボックスを設定して行のテキスト色を指定します

 1 list.setCellRenderer(new MyRenderer(new int[] {2,3}, Color.RED));   // 2 3 

 2 

 3 class MyRenderer extends DefaultListCellRenderer {  

 4       

 5     private Font font1;  

 6     private Font font2;  

 7     private Color rowcolor;  

 8     private int row;  

 9     private int[] rows;  

10  

11     public MyRenderer() {  

12         this.font1 = getFont();  

13         this.font2 = font1.deriveFont((float) (font1.getSize() + 10));  

14     }  

15  

16     public MyRenderer(int row, Color color) {  

17         this.rowcolor = color;  

18         this.row = row;  

19     }  

20  

21     public MyRenderer(int[] rows, Color color) {  

22         this.rowcolor = color;  

23         this.rows = rows;  

24     }  

25  

26     public Component getListCellRendererComponent(JList list, Object value,  

27             int index, boolean isSelected, boolean cellHasFocus) {  

28         super.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus);  

29         if (rows==null) {  

30             if (index == row) {  

31                 setForeground(this.rowcolor);  

32                 setFont(getFont().deriveFont((float) (getFont().getSize() + 2)));  

33             }  

34         } else {  

35             for (int i = 0; i < rows.length; i++) {  

36                 if (index == rows[i]) {  

37                     setForeground(this.rowcolor);  

38                     setFont(getFont().deriveFont((float) (getFont().getSize() + 2)));  

39                 }  

40             }  

41         }  

42  

43         return this;  

44     }  

45 }