如何动态地改变JLabel中文字的颜色？

Question

在要变地方
if(x ==1)
{
 JLabel1.setForegroud(Color.red) ;
 }

Answer 1

contentPane = (JPanel) this.getContentPane();
    contentPane.setLayout(new FlowLayout());
    JLabel jl=new JLabel("HelloWorld");
    jl.setText("jTextField1");
    contentPane.add(jl);
    Color[] color=new Color[]{
      new Color(00,00,00),
      new Color(255,00,00),
      new Color(00,255,00),
      new Color(00,00,255)
    };
    JComboBox jcb=new JComboBox(new String[]{"1","2","3","4"});
    jcb.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        Frame1.this.jl.setForeground(Frame1.this.color[((JComboBox)e.getSource()).getSelectedIndex()]);
        Frame1.this.validate();
      }
    });
    contentPane.add(jcb);